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Showing posts with label Common Car Problem. Show all posts
Showing posts with label Common Car Problem. Show all posts
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White Smoke from Exhaust of Car

White smoke from exhaust of car

Car trouble symptoms

There is a noticeable white smoke coming from the exhaust of the car. The reason why white smoke comes out the exhaust is that condensation is steaming off or the head gasket is damaged.

The reason why there is white smoke from the exhaust of the car


(1) Condensation is steaming off.
(2) The head gasket is damaged.

Condensation is Steaming Off

If white smoke from exhaust on startup happens just before the engine warmed up or before it reaches the normal operating temperature during a cold morning then it is normal, it is normal for an engine to develop white smoke from the exhaust when the engine is started cold. When the car is parked outside overnight on cold surroundings, condensation is formed inside the engine. Now during the morning when the engine is cold and the engine is started this condensation will become steam when the engine runs, the steam comes out white smoke from the exhaust of the car.

Next time when you anticipate that it is about to rain, parked the car inside the garage or in a place not exposed to the cold weather. Never parked the car outside.

Damaged Head Gasket

When the white smoke comes out the exhaust at any engine temperature say upon starting when the engine is cold and still when the engine is warmed up and reaches its operating temperature, then it is an indication of a blown head gasket. The head gasket might have a rack or ruptured.

Engine assembly with head gasket

The head gasket serves as a seal to keep the water that surrounds the engine from entering into the cylinders. In case you are not aware, the engine is surrounded by water to cool down the engine.

Now when the head gasket is ruptured or even develops a little crack because of wear and tear, some of the water that surrounds the engine will leak into the engine cylinders and will be burned as steam. The produced steam will then comes out the exhaust as white smoke.

Blue Smoke from Diesel Engine
First off, blue smoke from the exhaust always means that the engine is burning oil. Of course then, what we need to do is to find out what's causing this engine to burn oil.
Learn more: Blue Smoke from Diesel Engine

It is obvious that the head gasket must be replaced. Bring the car to a car shop and tell the mechanic about your diagnosis then ask to replace only the head gasket and nothing else to fix the problem. No other part is going to be replaced rather than the head gasket. Again, just a reminder, if you notice the white smoke from the exhaust after you start the engine and just before the engine warmed up or before it reaches normal operating temperature does not worry because of its normal and nothing wrong about your car.

Related topics:
Black Smoke from Exhaust of Car
White Smoke from Exhaust - Diesel Engine



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How to Charge a Car Battery with Jumper Cables


How to charge a battery with jumper cables

If the car won't start because of a dead battery? Jump starting a car is easy but should be done correctly so that accidents such as a battery explosion can be avoided that may result in the damage of your car or worst injured you. If you jump start a car, avoid the use of the frozen battery. Also, check the battery rating of each battery for the correct rating before jump-starting.
Steps on how to jump-start a car battery

Step 1. To jump-start a car you need to have a jumper cable and another car to serve as a booster battery for the car that won't start. Park the car with booster battery near the car needed to jump-start.

Step 2. Engage the parking brake of both cars for safety purposes. Make the gear positioning to a neutral position. If the car has an automatic transmission position the shift lever to park (P) position.

Step 3. Both of the electrical equipment and accessories for both cars must be turned off before jump-starting.

Step 4. Open the hood and connect the jump start cable on each car in the sequence as shown in the illustration which is positive to positive and negative to negative in sequence 1-2-3-4.

How to Disconnect a Car Battery
Which battery cable should be removed first? let's say you need to clean or replace the battery of your car so you disconnect the battery. Here's what you do to disconnect the car battery.
Read more: How to Disconnect a Car Battery

Jump start battery connection

Step 5. Check if the gear is in a neutral position then start the car with a booster battery. Depressed the brake pedal to rev the engine up to 2000 rpm for a few minutes.

Step 6. After a few minutes start the car to be jump start with. When the car won't start turns the ignition "OFF" and wait for 3 to 4 seconds then start the car again.

Step 7. When car starts, remove the jump start cable. Make sure you disconnect the cable in reverse sequence 4-3-2-1 as illustrated above.

Read also: How to Recharge a Car Battery





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Car Cranks but Wont Start

Car Cranks but Wont Start

The car cranks but won’t start. The possible reason why car cranks but won’t start is out of gas, broken timing belt, clogged air filter, the battery is weak or frozen battery electrolytes.

Reason why car cranks but won't start

(1) Car is out of gas.
(2) Broken timing belt.
(3) Clogged air filter.
(4) Corroded Battery terminal.
(5) Weak battery.


Car Troubleshooting


When the car cranks faster than normal then it is possible that the car is out of gas, therefore during cranking observe if the car will crank faster than normal then check if the car has fuel. Just fill the car with enough fuel and crank again.


If the car has enough fuel then the possible problem is that the car timing belt is broken. The broken timing belt can cause the engine compression to become low and since the car has low compression it is the reason why the engine cranks but won’t start. Timing belt ensures the engine valve to close during the combustion of each engine cylinder when the belt is broken there will be no compression in each cylinder thus the car won’t start during cranking.

Timing Belt

Bring the car to a reputable car shop and ask the mechanic to check the timing belt to confirm if it is indeed broken, if the mechanic confirms the broken timing belt then have it replaced.

If the car cranks normally or is the same as when the car is about to start then the possible problem is a clogged air filter. The clogged air filter is the reason why the car cranks but won’t start because when the air filter is clogged there is not enough air going into the engine, the air filter becomes clogged because of too much dirt in the element, this dirt is preventing the air to go inside the combustion chamber. Since there is not enough air inside the cylinder then it will not start because air is one of the components necessary for combustion.

Clogged Air Filter

Now, start the car and observe if the engine cranks the same as when it is about to start. Open the hood and locate the air filter. Removed the air filter then clean it, usually to clean the air filter just spray a pressurized air on the element. Cleaning the air filter is just a temporary solution to the problem.

The permanent solution is to replace the air filter. Normally air filter is replaced every two years, therefore, verify if the air filter installed on your car is past the two years period.

Car Battery is Weak or Battery Terminal is Corroded
If the car cranks slower than normal then the possible problem is a weak battery or the battery terminal is corroded. When the battery is weak there is not enough power to crank the engine, however, if the terminal is corroded then the current that flows into the starter is not enough to start the engine because the corrosion interferes on the flow of current.
Check the car battery.

Corroded Battery Terminal

Car Turns Over But Won't Start
The car turns over but won't start. The car is cranking slowly however, it will not start. If the car is turning over slowly and will not start the possible reason is the battery.
Learn more: Car Turns Over But Won't Start

Do the simple test to check if the battery is weak

1. Turn ON the headlights then turn the ignition key to start the engine while the headlights are ON.
2. During cranking observed if the brightness of the headlight changes, if the brightness changes when the engine is crank then there is a problem with the battery.

Now open the hood and locate the battery. Look thoroughly at the battery terminal for any corrosion present on the terminal. If the terminal is corroded then it is the reason why the car won’t start.

Clean the terminal with a wire brush. Apply a baking soda mix with water into the terminal before brushing with a wire brush. Also after the cleaning apply petroleum jelly on the battery terminal to prevent the terminal from corroding in the future.

However, if the terminal is not corroded then the battery is weak. Now, look at the fluid level of the battery, remove the fluid filler cap and check if the battery fluid covers the top of the battery plate, if not then add distilled water on the battery. The distilled water must cover the top of the battery plate then jump-start the car to start the engine.

How to Jump-Start a Car Battery
Jump starting a car is easy but should be done correctly so that accidents such as a battery explosion can be avoided.
Learn more: How to Jump-Start a Car Battery

However, if the battery has enough battery fluid then you have no other choice but to replace the battery with a new one.

Frozen Battery Electrolytes
If the car cranks but won’t start only when the temperature is very cold then the problem is a frozen battery electrolyte. At a very cold temperature, the electrolytes inside the battery may freeze or partially freeze, if this happens the battery will lose its power and it will not start the engine.

Car won't Start But Battery is Good
If the car won't start but the battery is good, check the timing belt. The car won't start but the battery works well while starting it just turn over and will not start but the car turns over a lot faster than normal.
Learn more: Car Won't Start But Battery is Good

Let the battery get warm for a while before starting the car. Now if you are about to drives on a very cold region use a battery with a higher cold cranking rating.

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Car Stalling While Driving

Car Stalling While Driving

The car is stalling while driving. The stalling occurs when the engine temperature is high or even when the engine temperature is normal. The reason for this is because of the vapor lock or a faulty fuel pressure regulator.


Reasons for Car Stalling While Driving

(1) Vapor lock.
(2) Faulty fuel pressure regulator.


Car Troubleshooting

When the car stalls if the engine temperature is abnormally hot then vapor lock is the usual cause of car stalling. Vapor lock occurs because when the engine is extremely hot the gas will boil before it gets inside the engine. Once the gas is boiling the gas creates air bubbles. The created air bubbles can cause the air/fuel ratio to become lean. When the air/fuel ratio is lean it means that there is too much air and not enough gasoline and when the engine doesn’t have enough fuel then the car will stall.

What to do?
There is nothing you can do when your car encounters a vapor lock. Just wait for the engine to cool down and start the engine again. The real problem here is why is the engine temperature becomes abnormally hot? Probably the engine has a problem on the cooling system, the normal process is when the engine is hot there is a coolant that is circulated around the engine coming from the radiator to cool down the engine, the water serves as a water jacket surrounding the engine but because vapor lock occurs it means that the cooling system is not functioning to cool down the engine.

Engine Cooling System

Has it checked by a mechanic, there might be a leak somewhere in the system, which causes the engine temperature to become abnormally hot.

If the car is equipped with a fuel injection system and also if the car stall even at normal engine temperature then the problem is the fuel pressure regulator. The fuel injection system has a component called the "Fuel pressure regulator", the purpose of this part is to maintain the fuel pressure on each and every fuel injectors, now if the regulator has a problem then the engine will be starved with fuel thus the car will stall.

Faulty fuel pressure regulator

What to do?

Bring the car to a reputable shop and have a mechanic check the Fuel Pressure Regulator. If the regulator is faulty just replace it to correct the problem. Replace only the pressure regulator and nothing else this usually fixes the engine stalling while driving.

Related Topics : 

Car Stalls When Idling
Car Stalling While Accelerating
Car Stalls at Idle
Engine Stalls While Driving





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Steering Feels Loose and Sloppy



Steering wheel feels loose and sloppy while driving on a normal road this is because of over-inflated tire or there is a faulty front end component.

Reasons why steering wheel feels loose and sloppy


Overinflated Front Tires

A steering wheel that feels loose and sloppy while driving is usually caused by front end components that are faulty or sometimes cause of over-inflated front tires. With that said, the first thing to do is check the front tires using a tire pressure gauge, compare the result with the tire pressure recommended by the vehicle manufacturer. If you do not know the value of the recommended tire pressure, look on the tire placard label adhere on the driver side door or look on the owner’s manual included on the vehicle when you first purchase the vehicle.

Based on the result of car problem troubleshooting you found out that the problem is the overinflated tire just let loose some air from the tire to make the pressure within the recommended value and correct the problem of the loose steering wheel.

If the tire pressure gauge actual pressure reading is higher than the recommended tire pressure then this causes sloppy or loose steering wheel. The problem happens because when the tire is overinflated, the tire will not have good contact with the road making it bounce around while the car is running. As the car runs faster the tire will bounce more. The bouncing effect will then be transferred to the steering linkage up to the steering wheel. The effect is a feeling of the loose and sloppy steering wheel.

Faulty Front End Components

Now if the reading of the actual tire pressure is the same as the recommended value indicated on the label or owner’s manual then this only means that the problem is not about overinflated front tires but rather a faulty front end component with that said it is necessary to inspect the car. When we say front end components, it consists of bars, rods, levers or other components underneath the front of the car, any of these parts when found to be faulty the driver may feel looseness on the steering wheel.



If after correcting the tire pressure the problem still exists the possibility is that one of the front end components is faulty, in this case, bring the car to a shop and ask the mechanic to check the front end of the car for any loose components and repair or replace if necessary.





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Black Smoke from Exhaust of Car

Black smoke from the exhaust of the car comes out while driving. The possible reasons for black smoke from the exhaust is a clogged air filter, bad fuel injector sensor (throttle position sensor, coolant temperature sensor, and mass airflow sensor).


Clogged air filter
Black smoke that comes out the exhaust is an indication of too much gas burned inside the engine combustion chamber. The most common reason why there is black smoke from the exhaust is the clogged air filter. When the air filter is clogged, enough amount of air will be restricted from going inside the engine making the air/fuel to become reach (too much fuel with not enough air).

Black Smoke from Exhaust of Car

White Smoke From Exhaust
If there is white smoke comes out from exhaust while the engine was running at any engine temperature like when its cold, warm or hot then it means that there is a problem with the engine.
Learn more: White Smoke From Exhaust

Open the hood of the car and locate the air filter, refer to the manual covering the vehicle model if you have difficulties finding the air filter. Remove the air filter and examine closely if there is too much dirt present on the filter, if there is too much dirt then this is what restricting replacement parts from going inside the combustion chamber that is why the air is insufficient and the fuel is too much.

Replace the air filter. This should fix the problem. Any auto parts have an air filter for their inventory so nothing to worry about where to find replacement parts.

Bad Fuel Injector Sensor
This problem is only possible for cars with fuel injection systems. Usually, the problem for this system is the electronic sensors that measure various engine factors in which the car computer system is used for calculating the amount of fuel that must be injected on each engine cylinder. If one the sensors are faulty then the wrong data will be sent to the car computer and the air/fuel mixture will be wrong which in this case the fuel is too rich.

There are three sensors that when faulty can cause black smoke, the sensors are throttle position sensor, engine coolant temperature sensor, and the mass airflow sensor.



There is only one way to determine if the sensor is faulty, this is to hook up the car to an engine analyzer. The engine analyzer will display trouble codes that can be used to determine if the sensor is the problem. With that said, bring the car to a reputable car shop to have the engine analyze with an engine analyzer. This kind of job is costly. If one of the sensors is bad, just replace the sensor to fix the problem of black smoke.

Engine Diagnostic
Engine diagnostic guide for car engines common problem from a technician experience, this will serve as a guide to solve your common engine problem, please feel free to read out the engine diagnostic articles.
Learn more: Engine Diagnostic


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My Car AC is Blowing Hot Air

 Car AC is Blowing Hot Air

The car Ac is blowing hot air suddenly or is blowing hot air slowly over a period of time. When turning the AC switch ON usually, cold air is coming out of the AC vents. But when the AC switch is turned ON instead of cold air, hot air is coming out the vents.

Possible cause why car ac is blowing hot air

Major Refrigerant Leak



If initially when turning the ac switch the ac vents is blowing cold air, then suddenly the vents are blowing hot air, it is an indication of a major refrigerant leak. The refrigerant is a liquid inside the ac system. The liquid takes away heat from the passenger compartment and purges it outside thereby creating a cooler environment from inside the passenger compartment. When there is a major refrigerant leak somewhere in the system because of ruptured hoses, the refrigerant will evaporate and the ac system will reduce its performance. Since the refrigerant evaporates, the ac vents will be blowing hot air instead of cold air.

Open the hood of your car and check the ac line for any ruptured hoses. Replace the ruptured hose.

AC Electrical Problem

The electrical system possibly the switches or wire is shorted or the fuse of the ac unit break which causes the ac system to malfunction. Check the fuses if busted. If the fuses are busted then this is what causes the problem.

Even though the fuse is replaced, it is most likely to be busted again because the cause of why the fuse is busted is not yet identified and repair. Therefore bring the car to a reputable shop and have the ac electrical system examine by a qualified mechanic.

Small Leak on the AC system

If the ac blows cold air then slowly blowing hot air over a period of time, it only means that there is a small leak somewhere on the ac system. A small leak on the system tends to drain out the refrigerant slowly over a period of time and slowly reduces the ac performance.

Car AC Not Cold Anymore
If the car AC is not blowing cold air anymore over time it is an indication of a slow refrigerant leak or a clogged condenser.
Read more: Car AC Not Cold Anymore

Bring the car to a reputable shop that specializes in car air conditioning system. Ask the mechanic to check for any leak on the system and have it repaired.

Clogged Condenser

The condenser is one of the components of the car ac system that serves as a mini radiator that removes the heat that the refrigerant absorbed in the passenger compartment. Over time the condenser will be clogged because of dirt or debris coming from the outside surroundings and it can slowly make the car AC to reduce performance which is why the car ac is blowing hot air.


Check the condenser for the buildup of dirt and clean using a soft brush and water. It should improve the performance of the ac system. If not then bring the car to a car shop that specializes in the car air conditioning system. Ask the mechanic to examine the ac hoses for any leak on the system, also for the electrical system for any short circuit. Recharge the system with new refrigerant after the repair is done.

Car AC not Blowing Air from Vents

When the car ac is not blowing air from vents in the car it is a sign of a faulty blower fan or air duct blockage. A faulty blower fan can make the car ac stopped working suddenly.

Learn more: Car AC not Blowing Air from Vents
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Car Stalls at Idle

Generally speaking, car stalls at idle is an indication of a fuel problem specifically lack of fuel. Reasons which cause the car to stalls at idle are a bad idle air bypass valve, a bad cold start valve, or a bad fuel pressure regulator.

Reasons why car stalls at idle

1. Bad idle air bypass valve
2. Bad cold start valve
3. Bad fuel pressure regulator

What to do?
Quickly step on the gas pedal and observe if the engine will continue running. If the engine continues to run it means that the problem is a bad idle air bypass valve. Fuel injection car has a device called idle air bypass valve, the purpose of this device is to maintain the idle speed of the engine. If this device is not functioning properly then the engine will stall. When the gas pedal is depressed when the engine is about to stall is an indication of a bad idle air bypass valve. By stepping the gas pedal will increase the throttle which compensates for the bad idle air bypass valve giving the engine enough fuel to continue running.  Replace the bad idle air bypass valve to correct the problem.

However, if the engine will not continue running even when the gas pedal is depressed then it’s not a case of a bad idle air bypass valve.

Now, observe if the car stalls while driving happens only if the engine is cold but will not happen after the engine has warmed up then the problem is a bad cold start valve. Fuel injection car has a device called a cold start valve. The purpose of this device is to keep the engine running when the engine is cold by providing the engine more gas so that the engines have a rich air/fuel mixture. Replacing the bad cold start valve will fix the problem.

If the air bypass valve and the start valve is not the problem then the only remaining possible reason why your car stalls while idling is a bad fuel pressure regulator. Generally speaking, car stalls at idle is an indication of a fuel problem specifically lack of fuel. Fuel injection car has a fuel pressure regulator, the purpose of this device is to maintain the fuel pressure to each of every injector. If there is a problem with this device the engine will be deprived of fuel which will cause the car to stall. Replace the fuel pressure regulator to fix the problem.


Bring the car to a shop and ask the mechanic to verify the problem, if the problem is confirmed replace the defective parts as necessary.


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Battery Light On and Off While Driving

The battery warning light indicator on dashboard is occasionally on and off while driving the possible reason is that the alternator is failing or the alternator belt is slipping.


Possible cause of battery light that flickers
1)The alternator belt is slipping.
2)The alternator itself is failing.

When the battery dashboard warning lights indicator flickers while the car is running there are two possibilities that causing this kind car trouble, as mentioned above it can cause by the slipping alternator belt or a failing alternator. The alternator is the device that provides electricity to the car battery, it is connected from the engine using an alternator belt, when the engine runs some of the power will be transferred to the alternator to make it runs and create electricity so that the battery will charge, aside from providing charges to the battery the alternator is also the one that provides electrical power to all your car accessories like the radio, air con, lights, etc. while the engine is running. Now, if the battery warning light indicator located on the instrument panel is lit “ON” then it means that the alternator is not generating electricity that the car accessories are needed.

Since the problem is the battery warning lights only flickers, sometimes on and sometimes off, then the problem is intermittently occurring which means that the alternator is sometimes generating electricity and sometimes not generating electricity or somewhat failing, during the time the alternator fails it cannot generates electricity and the battery warning lights is always on.

Brake Warning Light Came On Steadily While Driving

Lack of brake fluid or low brake fluid is also the common reason why the brake dashboard warning lights came on steadily while driving. When you are driving find a safe place to stop then open the hood of your car.

Read more : Brake Warning Light Came On Steadily While Driving

Also when the alternator belt is slipping the alternator cannot generates electricity, as mentioned above, the alternator is connected to the engine using the alternator belt, now if there is a problem on the alternator belt, for example, if the belt is broken the alternator will stop running and you can see the battery warning lights steadily ON, however since the warning lights only flicker this means that the belt sometimes fine and sometimes not which is usually a symptom of slipping belt, every time the alternator belt slip the alternator stop generating electricity this triggers the battery warning lights indicator on the dashboard to came “ON”.

How to fix for the flickering battery warning lights

Bring your car to a shop and ask the mechanic to check the alternator. More often than usual the belt is only needed some adjustment to fix it. But if the belt is no problem then it is the alternator that causes the problem, probably it is failing and it is necessary to replace the alternator. Have it fix soon because you may not be able to drive the car when the alternator failed completely.



Related Topics:
Anti-lock Braking System Warning Light Came On While Driving
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What Causes Ticking Noise in Engine While Running

Ticking Noise in Engine

What causes ticking noise in the engine? If ticking noise in the engine is heard while running is an indication of a poorly lubricated engine. The reason for this is the oil inside the engine is not enough or just simply the engine lacks engine oil or the oil pressure inside the engine is low.


Ticking Noise in Engine

What causes ticking noise in the engine?



Ticking noise is related to engine oil problem, with that said the focus of troubleshooting for this kind of problem is limited to checking the engine oil do the following.

Car Troubleshooting

1) Lift the hood of the car and locate the dipstick for the engine oil. Check the engine oil level by removing the dipstick. Wipe the end portion that dips with oil using a clean cloth.

2) Put back the dipstick on the original location (dipping it again on the engine), and put it out again and check the reading. If the reading is below the full line then the engine oil is low.

Ticking Noise in Engine

How to Check Engine Oil video credit

When the engine oil is low then the engine is poorly lubricated. This causes the engine ticking sound that you heard coming from the engine.

How to Check Oil in the Car
If the low oil warning lights on the dashboard are on, you should check the engine oil level immediately and add engine oil as needed. Before you drive your car in the morning checking the oil in the car must be done when the engine is cold.
Learn more: How to Check Oil in the Car

If the dipstick reading is within the full line this means that the oil level is enough and brings us to the next possible reason for engine ticking which is a low engine oil pressure inside the engine.

Now to confirm if the oil pressure inside the engine is low, Observe the oil indicator on the dashboard, if the oil indicator light comes on while the ticking sound occurs when there is a problem with lubrication system, why does your car's oil light come on? well, it is a case of low oil pressure. Otherwise, it is a leaking exhaust manifold or a loose valve is causing the ticking sound in the engine.

Ticking Noise in Engine

When the oil pressure is low not enough oil will reach most of the engine components causing ticking noise from the engine. What causes the oil pressure to become low? The oil pressure will become low if the oil pump is faulty or if the oil pan screen is clogged.

Possible cause of ticking noise in the engine
Poor engine lubrication because of low engine oil level, low oil pressure because of faulty oil pump or clogged oil pan screen, loose valve or leaking exhaust manifold.

How to fix ticking noise in the engine
Engine lubrication is poor. Add enough oil in the engine. Consult the vehicle owner’s manual for the type of oil to be added.

Oil pressure is low. Bring the car to the car shop to determine whether bad oil pumps or a clogged oil pan screen is causing the ticking noise in engine and repair if necessary.

Ticking Noise in Engine

Exhaust manifold leak or loose valve. Bring the car to a shop and ask the mechanic to check for any loose valve in the car engine or a leak on the exhaust manifold. Sometimes a valve adjustment or a tightening of loose bolt on the exhaust manifold can solve the problem of engine ticking noise that causes by these car problems.

Ticking Noise in Engine

Engine Diagnostic
Engine diagnostic guide for car engines common problem from a technician experience, this will serve as a guide to solve your common engine problem, please feel free to read out the engine diagnostic articles.
Learn more: Engine Diagnostic

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Car Jerks When Accelerating

Car jerks when accelerating especially during cold rainy morning when the engine is cold. Several reasons are causing it depending on the condition of the car when it happened. 

Possible reasons why car jerks when accelerating

Moisture in Distribution Cap


Since the acceleration problem happens when the engine is cold especially during wet morning this suggests moisture in the distributor cap. This happens because when you park the car overnight especially on the outside, moisture is formed inside the distributor cap because of the wet weather. The moisture allows the electrical current to arc inside the distributor cap that causes engine misfiring because of uneven power is produced and when the engine misfire the car jerks when accelerating.

How to avoid the car to jerks when accelerating because of moisture in the distributor cap. To avoid having moisture in the distributor cap from happening park your car inside the garage if you expect rain to come.



Vacuum Leak


If the car jerks gradually happened when accelerating and become worse over time. When the car jerking happens gradually and becomes worst overtime then this indicates a possible problem of a vacuum leak. When the car has a problem with a vacuum leak it will not be noticeable initially and it will become noticeable when it gets worst. The fuel system creates a vacuum in which is one of the key factors in determining the amount of fuel the engine will get. When there is a vacuum leak on the system the amount of fuel the engine gets will become wrong and this will result in car jerking.

Bring the car to the car shop and ask the mechanic to check for any vacuum leak on the system. Usually, the most common parts that are always the source of a vacuum leak is the Exhaust Gas Re-circulation (EGR) and the PCV valves which you should suggest to the mechanic to check.

Exhaust gas recirculation(EGR)

Faulty Throttle Position Sensor
If the car jerks happened constantly when accelerating at any engine temperature When your car has a fuel injection system usually the reason for this problem is a bad throttle position sensor. The throttle position sensor is a device present in a fuel injection system, the purpose of this device is to measure how far the driver depressed the gas pedal and feed the data to the car computer which calculates how much fuel the system should inject into the engine. Now, when the throttle position sensor is bad wrong data will be sent to the computer and the amount of fuel injected to the engine will also become wrong that is why the car jerks during acceleration.

Throttle position sensor

Bring the car to a shop and ask the mechanic to check the throttle position sensor. Explain to the mechanic the symptom of the problems you have noticed for a better understanding of the problem and made the troubleshooting easy.  

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See also: Car Stalling While Accelerating
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Engine Ticking Noise While Driving


Engine ticking noise while driving is heard or there is a slight tapping noise from the engine while the engine is running.

Possible cause of Ticking Noise in Engine

The Level of Engine Oil is Low

Engine ticking noise while running is usually an indication of a poorly lubricated engine. The reason for this is that there is not enough oil inside the engine or simply the engine lacks engine oil.

Now, the first thing to do is to check the level of the engine oil inside the engine, open the hood of the car and locate the dipstick for the engine oil. Then remove the dipstick, wipe the end of the dipstick with a clean cloth and put the dipstick back to the original location in the engine. Pull the dipstick again and check the reading. Refer to the car owner’s manual for the standard reading of the oil for the car. If the engine oil is below the required level it means that the engine is poorly lubricated and this causes the ticking sound coming from the engine.


Engine oil serves as a barrier between every part of the engine that rubs each other if there is not enough oil inside the engine those parts will have direct contact with each other and noise will produce.

Add some oil in the engine. When adding some oil, make sure that the right type of oil is used. Refer to the car owner’s manual for the correct type of oil to be used.

If the oil light located on the instrument panel is on while the ticking noise is heard then this is an indication of low oil pressure inside the engine. To keep the engine running smoothly, proper lubrication is necessary also the lubrication serves to dampen the noise resulted from the contact of between components inside the engine and proper lubrication depend on the oil pressure.

When the oil pressure is low, certain components of the engine such as the valve stems and the rocker arms are not lubricated fully. Since those parts do not receive enough lubrication, eventually they will produce ticking sound during operation.

How to Check Oil in the Car
If the low oil warning lights on the dashboard is on, you should check the engine oil level immediately and add engine oil as needed. Before you drive your car in the morning checking the oil in the car must be done when the engine is cold.

Read more : How to Check Oil in the Car

What causes the oil pressure to become low? When the oil pressure is low the problem is either the oil pump is bad or the oil pan screen is clogged. But usually, the oil pump is bad that is why the engine does not receive enough lubrication which in turn causes the ticking sound. Bring the car to a reputable car shop and ask the mechanic to check the oil pump. Having change oil in your car will remove any clogged on the oil pan screen. It is necessary to repair this problem to prolong the life of the engine.


If the valve is loose or the exhaust manifold is leaking
Having a loose valve or leaking exhaust manifold will create ticking sound or tapping sound coming from the engine while the engine is running. However, it can be noticed that the ticking sound will go faster as the engine revs up. As the engine runs the loose valve will slap against the rocker arm and creates ticking sound.

Same as when the exhaust manifold is leaking, when the gas leaks out from the manifold it will create ticking sound. Bring the car to a shop and ask the mechanic to analyze the engine and repair if necessary. If the engine valve is adjustable valves just tightened the valve to eliminate the ticking sound. About the leaking exhaust manifold, it may only be the manifold bolts that are loose and need to re-tighten.

Engine Diagnostic
Engine diagnostic guide for car engines common problem from a technician experience, this will serve as a guide to solve your common engine problem, please feel free to read out the engine diagnostic articles.
Learn more: Engine Diagnostic


Related Topics:
Engine Pinging Noise on UphillEngine Pinging Noise While Driving


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Temperature Gauge Read Hot After the Engine Start

The temperature gauge reads hot after the engine is started. Several reasons are causing this such as the radiator lacks coolant, the hose of the radiator is collapsed, the water pump is faulty, or there is a problem with the thermostat.

Possible cause of temperature gauge that reads hot after starting
1) The radiator lacks coolant
2) The radiator hose is collapsed
3) The water pump is faulty
4) The thermostat is faulty

The listed reasons above the first two are the easiest to check. Now the first thing to do is to check the radiator if there is enough coolant in the system. Open the hood and locate the radiator, remove the radiator cap. Make sure that the engine is cold before removing the radiator cap otherwise you may burn yourself. Using a flashlight look down at the radiator fill hole to check the coolant level, the coolant level is said to be enough when the coolant covers the fins inside the radiator. If the coolant did not cover the radiator fins then the coolant inside the radiator is not enough and this causes the temperature gauge to reads hot. To work efficiently the engine cooling system must have enough coolant if the coolant is not enough the engine will heat up too quickly and the temperature gauge will register hot.

If there is enough coolant in the radiator, the next thing to check is the radiator hose. While the hood is opened locate the radiator hose. Refer to the manual if you are having difficulties in finding the radiator hose. Ask a friend to start the engine while you observed the radiator hose, watch the hose until the engine gets hot. Look closely if the hose is collapsing, usually, an old hose or a defective hose behave like there is pinching the hose.

Coolant Boiling Over After Engine Start

If the radiator boil over after the engine start, it indicates a leaking radiator cap or a wrong anti-freeze / water ratio.

Read more: Coolant Boiling Over After Engine Start

If the radiator hose is collapsing then this causes the temperature gauge to read hot. When the hose is collapsing the coolant will be prevented from flowing in the radiator into the engine. This will cause the coolant to heat up quickly.

If the hose is not collapsing then the possible cause of the problem is a faulty water pump or a faulty thermostat. The water pump is the one that pumps the coolant out of the radiator going inside the engine and back to the radiator. If the water pump is faulty the coolant will not be circulated through the radiator and will get hot and the temperature gauge will read hot.

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Now for the thermostat, the purpose is opposite that of the water pump this is because the thermostat is what keeping the coolant from getting into the radiator when the cold engine is started. Initially, the thermostat is in the closed position. After the engine warms up the thermostat will open to allow the coolant from the engine to reach the radiator. If the thermostat is faulty such as when the thermostat is stuck on the closed position the coolant that surrounds the engine will get hot and the temperature gauge will read hot. 


How to fix the temperature gauge that reads hot after the engine start
Radiator Lacks Coolant
Make a 50/50 mix of anti-freeze and water in an empty container, you can buy anti-freeze fluid at any parts store. During the morning when the engine is cold, remove the radiator cap and pour enough amount of coolant to the radiator, the coolant must cover the fins inside the radiator. Now the problem is why the radiator lacks the amount of coolant, there might be a leak somewhere in the system. Have the cooling system check to make sure there is no leak on the system.

Collapsed Radiator Hose
Just replace the radiator hose with a new one.

Warning Lights on the Dashboard
What is that warning lights on the dashboard mean? If these dashboard warning lights are lit it means something is wrong with the car to warn the driver.

Read more: Warning Lights on the Dashboard

Faulty Water Pump or Faulty Thermostat
Bring the car to a car shop then have a mechanic to check the water pump or thermostat to determine which of the two causes the problem. Replace the faulty parts to fix the problem.



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Car Shakes When Stopped


The car shakes when stopped, the entire car shaking occurs during the application of brakes when the car is stopped. The reason for this problem is the uneven contact between the brake drum and the brake shoe.


Car Shakes When Idle After Starting

Car shakes when idle after starting, while idle the entire car is somewhat shaking. When the car shakes on idle after start up, it is an indication of a problem on engine misfiring.


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Car Loses Power Going Uphill

If a car loses power going uphill driving but have enough power when running on the flat roads then the possible cause of the problem is worn-out rings or the valves are worn out.


Car Pulls to the Right or Left Slightly

If a car is pulling to the left or pulling to the right while driving possible reason is the tire pressure is a mismatch, the brakes are dragging or the wheel is slightly out of alignment.


Do it yourself

Step by step do it yourself easy to understand basic car maintenance for the car owners.

How to Install a Car Battery

While engine is running, use the meter to check the alternator and voltage regulator output. This is very important because a faulty alternator or voltage regulator can cause a premature battery failure and you do not want this to happen.

How to Check Tyre Pressure

The tyre thread life could reduce if the tyre pressure of your car is under what the car manufacturer specified on your car owner’s manual.

How to Change a Flat Tire

When you encounter a flat tire while you drive your car the first thing to do is to pull off the road away the traffic as possible.

How to Recharge a Car Battery

Before attempting to recharge car battery always make sure that the battery is at room temperature (60 °F to 80°F). Also, when it is extremely cold remove the battery from the car and bring it indoors to allow the battery to become warm before begin the charging.

How to Disconnect a Car Battery

Do you know how to disconnect a car battery? Suppose you want to clean or replace the battery and needed to disconnect the battery to make the job well then here is what to do.

How to Replace Windshield Wipers

When you have a car it is important that you have knowledge with basic car maintenance like this simple step on how to replace windshield wipers.

How to Jump Start a Car Battery

Jump a starting car is easy but should be done correctly so that accident such as a battery explosion can be avoided that may result to the damage of your car or worst injured you. Here's how to jump start a car.

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