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Showing posts with label Warning Light Diagnostic. Show all posts
Showing posts with label Warning Light Diagnostic. Show all posts
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Brake Warning Light Came On Steady While Driving

Brake warning light came on steady

A brake light that came on steadily is a cause by the following reason the parking brake is slightly engaged, the system lacks brake fluid or there is a pressure imbalance on the brake hydraulic system.

Possible cause of brake warning light that comes on

1. The parking brake is slightly engaged which trip the brake warning lights

The parking brake is engaged when the car is at the park for safety purposes and may also serve as an emergency brake when the regular brake fails.

Now, when you park your car and engaged the parking brake, you will see an indicator lights on the instrument panel signaling that the parking brake is engaged with that said when you encounter a brake warning light that came on steadily you need to check if the parking brake is slightly engaged.

The next time you drive, make sure that the parking brake is fully released and not slightly engaged before you start to drive.

2. The system lacks brake fluid

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, locate the brake fluid reservoir usually it is located on the top of the master cylinder. Once you located the reservoir, check the brake fluid level if it is within the minimum required level. There is an indication on the reservoir on the maximum and minimum level for fluid.

Brake fluid location

Rock the car slightly to while looking at the reservoir to determine where the level of brake fluid is. If the level is below the minimum required level then it is the reason why the brake warning light came on steadily.

Brake Warning Light Flashing
Buy yourself a can of high-quality brake fluid ("DOT 3" or "DOT 4", as it's called) and carefully add just enough to top off the brake fluid reservoir.
Read more: Brake Warning Light Flashing

Just add enough brake fluid on the reservoir the level must be above the minimum level but not exceeding the maximum level. Never leave the reservoir open for a longer time than necessary because if you leave the brake fluid open than usual it can cause moisture contamination on the fluid.

3. There is a pressure imbalance on the brake hydraulic system

Pressure imbalance on the brake hydraulic system can also cause the brake warning light to come on steadily. This is usually caused by a collapsed brake hose, damaged brake lines or an internal leak in the master cylinder.

If there is a problem of imbalance pressure on the hydraulic system it is not safe to drive the car. Tow the car to the nearest car shop at once. If you continue to drive the car with imbalance pressure on the brake it may cause a serious problem on the car involving the brake hydraulic system. Ask the mechanic to check your car for an imbalance pressure on the brake hydraulic system.



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Brake Warning Light Flashing

Brake Warning Light Flashing
If the brake warning light is flashing, this generally indicates that the brake fluid is slightly low.

You might not know but at the top of the brake fluid reservoir, there's a sensor that causes the brake warning light to go on whenever the brake fluid level is low. Since the brake warning light is flashing while driving for a second or so and did not stay on continuously, the brake fluid level must be just slightly low.


You probably noticed the light flashing when you drove over a dip or bump. This caused the brake fluid in the reservoir to slosh and, for a second, the fluid was not in contact with the sensor. Consequently, the warning light came on.

What to do?
Buy yourself a can of high-quality brake fluid ("DOT 3" or "DOT 4", as it's called) and carefully add just enough to top off the brake fluid reservoir. Do not leave the brake fluid reservoir open any longer than necessary. Doing so will cause the brake fluid to become contaminated by moisture in the air and this will then lead to a whole slew of new problems. Also, for the same reason, throw the can of brake fluid away when done.

How to Test an Alternator
An automobile has many electrical devices, such as the starting system, lights, radio, etc. These devices are operated by the electric current supplied from the battery and alternator. The amount of power generated depends on the alternator specification and engine speed.
  
Learn more: How to Test an Alternator





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Battery Light Keeps Coming On

Battery Light Keeps Coming On

If battery warning light keeps coming on while driving, it indicates a slipping alternator belt or failing alternator.

The reason why battery light keeps coming on
(1) Slipping alternator belt
(2) Failing alternator

First, let's get some background information. An alternator is a belt-driven device that does two things.

1) it recharges the battery and,
2) it provides electricity to accessories while the engine is running.

So, if the battery light is on, it means the alternator isn't generating any electricity to,
1) charge the battery or,
2) power the accessories.

With that said, we have the following two possibilities...

Slipping Alternator Belt - If the belt occasionally slips, the alternator won't generate any electricity during the slippage. This will trigger the battery light to flicker.

Failing Alternator - If the alternator occasionally fails/dies, it won't (of course) generate any electricity during the failure. This will trigger the battery light to flicker. Although rare, it's possible that wire coming off the alternator may have become loose. If this is the case, each time the loose wire breaks contact with the alternator, the battery light will come on.

Battery Light Keeps Coming On

What to do?
Please take the car to a reputable car repair shop and ask the mechanic to inspect the alternator and its belt. Hopefully, all you'll need is to have the belt adjusted or replaced.

Have this problem taken care of soon. If you don't, you can be sure that one day the battery light won't just flicker but rather it'll come on steady. When that happens, you will have roughly 20 minutes of driving left before the engine conks out.

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

If the mechanic says you need a new alternator, don't be surprised if tells you that he'll have to replace something called the "voltage regulator" as well. Why? Because, on many vehicles, its necessary to replace both the alternator and voltage regulator at the same time.

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Temperature Gauge Reads Hot During Traffic

Temperature Gauge Reads Hot During Traffic

When temperature gauge reads hot during traffic it means that there is something wrong with the fan. This particular problem suggests that there is something wrong with the fan. You see the main purpose of the fan is to keep the engine cool when the vehicle either moving slowly or stop such as in prolonged slow traffic.

The reason why temperature gauge reads hot during the traffic

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Temperature Reads Hot After Engine Start


Temperature Reads Hot After Engine Start

If the temperature reads hot after the engine is started the possible reason is a lack of coolant, collapse radiator hose, bad water pump, or a bad thermostat.

Possible reasons why temperature reads hot after engine start


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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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Radiator Boils Over when the Engine is Semi-hot

The radiator boils over even though the engine is semi-hot. The two possible reasons are causing this problem, first is a leaking radiator cap, second is a wrong anti-freeze/water ratio.



Possible Cause why the Radiator boils over even when the Engine is semi-hot
Leaking Radiator Cap

If the radiator boils over even when the engine is semi-hot, it is most likely caused by a leaking radiator cap. The radiator cap is the one that keeps the entire engine cooling system under pressure which also resulted in the rising of the boiling point of the coolant inside the radiator. Now, if the radiator cap is leaking the boiling point of the coolant will be less than that of the normal. If this happens the engine and the coolant will only need to be semi-hot for the radiator to boils over.

How to Pressure Test Radiator Cap

Remove the radiator cap, but before removing make sure that the engine cools down. Examine the radiator cap for any cracks on the rubber part then put back the radiator cap and check if the cap is securely attached to the radiator fill hole. If there is something unusual on the radiator cap like looseness then replace the cap with a new one. Usually, this will fix the boils over the radiator even when the engine is semi-hot.

Wrong Anti-freeze/Water Ratio
Anti-freeze is the one that keeps the water from freezing with added into the water when the temperature of the outside surrounding is very low. The anti-freeze also raises the boiling point of the water usually the water coolant ratio is 50/50 mix. With this mixing, it is adequate for both freeze and boils over protection.

Now if the mixing is not correct like there is more water than anti-freeze then the coolant will boil at a much lower temperature in this case even when the engine is semi-hot.

Coolant Boiling Over After Engine Start

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

Read more : Coolant Boiling Over After Engine Start

Have the entire cooling system back flushed to completely remove the old coolant inside the cooling system then replace the coolant with a 50/50 mix of anti-freeze and water.

Temperature Gauge Reads Hot in Prolonged Traffic

The temperature gauge of the car will reads hot when stuck on traffic. The possible cause of the problem  is a faulty fan motor, sensor or switch. Other reason is a slipping fan belt.

Temperature Gauge that Reads Hot Possible Causes

Faulty Fan Motor, Sensor or Switch
If the car is equipped with an electric fan then the possible cause is that the motor, sensor, or the switch is faulty.

The purpose of the fan is cool down the engine when the car is stopped or moving at low speed such as during traffic. Since your car is equipped with an electric fan those three parts mentioned above is possible cause of the problem. When the fan motor is faulty the fan will not function to cool the engine.

The purpose of the coolant sensor is to measure the temperature of the coolant, when the temperature is high the fan will be triggered to cool down the engine, now if the sensor is faulty the fan will not be triggered and the engine won’t cool.

The purpose of the fan switch is turn on the fan, if the switch is faulty the fan will also not triggered.

Bring the car to a reputable car shop and ask the mechanic to inspect the electric fan, explain to the mechanic about your diagnosis and repair or replace the faulty parts if necessary.

Slipping Fan Belt or Faulty Fan Clutch

This is possible only when your car uses a belt driven fan. When the fan is belt driven, the belt might be slipping. If this is the case the fan will not turn as fast as it should be, this will cause the engine to become too hot and the temperature gauge will reads hot. Same as when the fan clutch is faulty, fan clutch is a mechanical device that causes the fan to engage when the engine temperature is getting hot and also disengaged when engine temperature becomes low or within the engine operating temperature. If the fan clutch is faulty the fan will not spin thus making the engine not to cool down when the engine temperature is hot.

Turn off the engine, and then open the hood of your car. Inspect the fan belt if indeed it is loose use your finger to press down the middle of the belt. If the belt is tight the belt will not go down more than a half inch. If the belt goes down half inch then the belt is loose. Tighten the belt to correct the problem.

If the belt is tight then the problem is the fan clutch, in this case bring the car to a reputable car shop and ask the mechanic to check the fan clutch and replace if necessary.
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Low Oil Light Flashing Occasionally While Driving

Low Oil Light Flashing

The oil warning lights indicator on the dashboard flickers occasionally while driving your car this is because the engine oil level is low, a wrong viscosity of the oil is used, the oil pan is partly clogged, or a faulty oil pressure sensor.

Anti-lock Brake Light Came On Steadily While Driving

Conditions when car trouble occurs
While driving your car the anti-lock brake warning lights located on the dashboard came on steadily.

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Oil Light On Steadily While Driving

Oil Warning Light Came On Steadily
The oil light came on steadily while the car is running the possible cause is that the engine oil level is low, the oil pump is faulty, or the oil pressure sensor is faulty.

The reason why oil light on steadily while driving

1) The engine lacks oil or the oil level is low causing the car's oil light to come ON.
2) The Oil Pump is faulty.
3) The Oil Pressure sensor or its wiring is faulty.

If the oil warning lights on the dashboard came on steadily while driving, it is an indication of a serious problem with the car, there is not enough oil pressure inside the engine. When there is not enough oil pressure the engine will not be lubricated properly.

Car Troubleshooting
The first thing to do is to check if the engine has enough engine oil. How to check the oil in a car? Now open the hood and locate the oil dip stick. Check the dipstick if it indicates enough level of oil, see the car owners manual if you are not sure how to check the engine oil level. If the engine oil level is low then the low engine oil is what triggers the oil light to come on steadily. The low oil level causes the oil pressure inside the engine to become low also. Once the engine oil is low, the oil sensor is triggered and cause the oil light to lit.

If there is enough oil inside the engine then the problem is not the amount of engine oil but most likely, the oil pump is faulty or the oil pressure and its wiring are faulty.

The oil pumps the one that creates oil pressure inside the engine if the oil pump is defective the oil pressure inside the engine will drop which trigger the oil warning light to light.

The oil warning light respond to the signal it receives from the oil pressure sensor, now if the oil pressure sensor is defective the data of the oil pressure inside the engine will not correctly read and in many times it reads a low oil pressure and it will send electrical signal to oil warning light to come on. This is also the same to happen if the wiring of the oil pressure sensor that connects to the oil warning light is faulty or loose.

What to do?
If the engine Lacks Engine Oil. Add some amount of oil to the engine make sure the engine is not overfilled.

If the oil pump is faulty or the oil pressure sensor and wiring is faulty

Bring the car to a shop and have a mechanic to inspect the oil pump and the oil pressure sensor/wiring. It is not advisable to drive the car when this happens because it might cause the engine to freeze up.
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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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Battery Warning Light Comes On While Driving


The battery light comes on steady while driving.

Possible cause of lit battery warning lights
1) The alternator belt is damage.
2) The alternator is faulty.

Troubleshooting battery warning lights that come on
When your battery warning lights on the dashboard come on while driving two reasons will cause this, first is the alternator belt is broken and second, the alternator failed. The alternator is being driven by the engine using belts for the purpose of supplying charge on the battery and provides electrical power on all of your car accessories. If the battery light comes on while driving it means that the alternator is not generating electrical power for your car and all the car accessories will draw power to the battery until the battery also loses power. Now why the alternator is not supplying electrical power to the battery and accessories?

Two reasons are causing this, now pop up the hood and look into the alternator. Check if the alternator belt is damage if the belt is intact then the problem is the faulty alternator.

Read also: Battery Warning Lights Flickers

How to correct battery light comes on while driving
Damage belt
Locate the alternator and check for the belts, If the problem is the damage belts just replace the alternator belt to fix the problem, you may do the replacement yourself.

Faulty alternator
If there is a problem with the alternator for some car, it can cause the car to stall. In this case, have your car towed to a shop and as the mechanic to check the alternator. The most common cause of alternator fault is a worn carbon brush just replaces the brush and the alternator is good to go. If the brush is in good condition the possibility is that the diode or the wiring inside is damage, in this case, replace the alternator with new or rebuilt one to fix the problem.

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

What does it mean when the Battery light comes on

What does it mean when the battery light comes on?

Troubleshooting car problem of Battery Light Came on While Driving
When a battery light came on while you drive your car usually it indicates a broken alternator belt or the alternator fails to produce electrical charge for the battery. The alternator is a device that charges the car battery, also it provides electricity to the entire car accessories installed in your car such as lights, radio, etc. while the car engine is running.

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