Free Car Diagnostic

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 be 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 stopped 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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Iridium Spark Plug Gap, Wear and Tear

Spark plug condition has a direct effect on the performance of the car engine. This part is small and simple but used on the harsh environment and have a greater effect on the car when it is faulty.

The spark plug is said to be malfunction if it affects the performance of the car such as poor fuel consumption, hard to start the car and when the car idling is unstable.

Now a day some cars use iridium-type spark plug because of low wear and tear to achieved smaller diameter of the center electrode, the smaller diameter will make the center electrode to discharge the sparks easily because the electric potential is concentrated and will result to generation of strong spark. The melting point is much higher than the platinum type spark plug.

4 Steps of Repairing Car Electrical Trouble

Step 1. Verification
  • Identify what is the trouble and confirm the car for the occurrence of car trouble.
  • After the car trouble is identified and confirmed verify if the condition is abnormal.
  • Identify if there are other related function and circuit that is not working or working abnormally.
  • Identify if there are related functions and circuit that is working normally.

Car AC Blows Air with Mildew Odor

When the car air conditioning is turned on, the air that comes out the air-con vents is with mildew odor.

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Engine Sounds Rough at High speed

When the car reaches 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.

Noise when Moving in One Particular Gear

Noise is heard when shifting into one particular gear, the noise does not occur on other gears when shifting. This happens when the teeth of the involve gear is damage or the bearings of the involve gear is damage.

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Transmission Jump Out of Gear When Reversing

Transmission jump out of gear when the car is reversing. The gear wont stay when backing up this is because the shift linkage is faulty or the shift linkage is weak, other reason is because the shift rail spring tension is weak. image
Manual Transmission Components image credit

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