Free Car Diagnostics

Showing posts with label Engine Diagnostic. Show all posts
Showing posts with label Engine Diagnostic. Show all posts
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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).

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What Causes Ticking Noise in Engine While Running

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 reasons 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.

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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. image
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Why is there blue smoke coming from my exhaust?

Do you know why is there blue smoke coming from your exhaust? Well, if the car exhaust produces blue smoke then obviously the engine is burning oil. There are reasons why an engine burns oil those are bad rings, bad valve stems seals, or if the car have turbo charger a leaking turbo charger seals is what cause the engine to burn oil.

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What Makes a Car Engine Ping?

What makes a car engine ping? Several reasons makes the engine ping, however the reasons will depend on the condition. If the engine produce pinging noise when driving uphill but no noise when driving on normal roads, it means the fuel you use is a low grade fuel or the air that comes in the combustion chamber is thin.

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Car Runs then Dies

Initially the car runs after starting then after several seconds the car dies. The possible reasons is run on, fast idle speed or leak on fuel injectors.


Engine Pinging Noise when Driving Uphill

The engine produces pinging noise when driving uphill but no noise when driving on normal roads. The reason is because low octane gasoline is used, the air is thin or load sensor is faulty.


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.


Car Sputters When Starting

During starting the car sputters when starting, this happens if the engine is out of gas, the distributor cap has moisture, the timing belt is damage, the coil are bad or there is a problem on the electronic ignition.

Engine Poor Response when Clutch Pedal is Release

The engine response poorly when the clutch pedal is release the reason for this problem is that the clutch is out of adjustments or is badly worn out.

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High Pitch Squeal from Engine While Running

While the engine is running, the engine produced high pitch squeal. This possible reason is because of a worn drive belt, faulty alternator, or bad steering pump.

Engine Backfires While Driving

The engine backfires on the tail pipe while driving mainly because of the problem on the air injection system, another reason is the valve is not sealing or the engine timing is off.

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Engine Starts but Will Not Continue Running

The engine start but will not continue running. The reason for this problem is a bad electronic sensor, bad electric fuel pump or there is a problem on the fuel injection system.

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Engine Pinging Sound When Driving on Flat Roads and Uphill

While driving on flat roads there is a pinging sound coming from engine, also pinging sound occurs while driving uphill. Usually the reason of pinging sound is the use of low grade gas, other reasons are faulty turbo charger knock sensor, the EGR valve is faulty or spark plug end cover is covered with carbon. 

How to Diagnose Engine Overheating

Engine overheating happens when the balance of the cooling capability of the engine and the heat generated when the engine operates starts to deteriorate. When this balance is deteriorating it will extremely increase the coolant temperature that causes the coolant to boil.

The coolant will boiled into steam and spew out from the deteriorated portions like the reservoir or radiator. Continuously running the engine at this condition will damage the engine.

What to do when Engine Overheats?
1.If the car can be move, move it safely off the road and away from traffic, park the car.
2.Continue run the engine, do not stop the engine. Because when the engine is stop the water pump will also stop working and the flow of the coolant from the reservoir into the engine will also stop. The coolant will stop circulating around the engine but continues to receive heat coming from the engine and will continue to boil in that condition thus overheating will not be resolved.
3.Open the hood so that the air will help to cool down the engine.
4.After the temperature indicated on the temperature gauge goes down then stop the engine.
5.Request the car dealer for any assistance.

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Engine Sounds Rough at High speed

When the car reach high speed the engine sounds rough, but on normal speed the engine sound is not rough or the sound is normal. Usually the reason for this is because of the problem on spark plug or spark plug wires.

Engine Sounds Rough on Idling

The engine sounds rough when idling or when the car is not moving and stopped this is because the engine cylinder is misfiring that is resulted from a vacuum leak or a bad spark plug.

Car Starts but Black Smoke Comes out the Exhaust Initially

Car problem symptom: Car starts but black smoke comes out from exhaust during initial starting.

Troubleshooting car problems: When the car is equipped with fuel injection system it is controlled by electronic engine control. In this case the car has many sensors that monitor some of the engine factors and send the information to the car computer called the electronic engine control. The EEC will use the information to determine the exact amount of fuel needed to inject into the cylinder.

Blue Smoke from Exhaust of Car

There is a blue smoke that comes out the exhaust while driving or while accelerating. Also, weak power is noticed especially when driving uphill. The reason is that the rings or the valve stem seals are bad, other reason is the turbo charge seal is leaking.

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