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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.

Iridium Spark Plug Gap, Wear and Tear

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

Conditions when car trouble occurs
When the car air conditioning is turned on, the air that comes out the air con vents is with mildew odor.

Possible cause of car trouble
Drain pan of AC unit is not draining

Car problem troubleshooting
Car air conditioning has a component called the evaporator, when the air conditioning is turned on the evaporator gets very cold then if the air is blown through the evaporator the air will turn out to be cold after it passes the many fins of the evaporator and going out the air conditioning vents. Now, during hot and humid days a condensation is formed on the evaporator because the evaporator is cold. The moisture that is formed will drip down into the drain pan of the evaporator unit and then it is funneled down a hose going out the road.

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.


Noise when Moving in One Particular Gear

Conditions when the car trouble occurs.
Noise is heard when shifting into one particular gear, the noise do not occur on other gears when shifting.

Possible reasons of car trouble
1. The teeth of the involve gear is damage
2. The bearings of the involve gear is damage

Troubleshooting noise problem when moving in one particular gear
When there is noise problem that occurs when shifting in one particular gear it means that there is a problem on the gear specifically the involve gear when shifting. This kind of problem is commonly cause by a problem of damage gear teeth of the involve gear or a problem of damage bearings for that particular gear.

Clutch Pedal Vibrates When Depressed

Conditions when the car trouble occurs
While the clutch pedal is depressed the clutch pedal vibrates.

Possible cause of car trouble
Loose clutch disc
Loose pressure plate
Loose flywheel

Car problem troubleshooting
In determining this kind of problem, the transmission assemble is need to be open-up since it is very difficult to determine the real cause of the problem, however the usual cause if the clutch pedal vibrates when the pedal is depress is a loose clutch disc, pressure plate, or flywheel. These three components are somewhat connected to each other.

Transmission Jump Out of Gear When Reversing

Conditions when the car trouble occurs
Transmission jump out of gear when the car is reversing. The gear wont stay when backing up.

Possible cause of transmission that jump out of gear when reversing
The shift linkage is faulty
The shift linkage is weak
The shift rail spring tension is weak

Troubleshooting transmission that jump out of gear
Transmission is very complex part and is very difficult to diagnose the cause of the problem when it occur especially the manual transmission.
With regards to the transmission problem when the transmission jumps out of gear during reversing usually the problem that involves is the shift linkage or the shift rail. Those two parts can cause the transmission to pop out of gear if both are faulty or out of adjustments or when the tension of the shift rail spring is weak. There are other possibilities but it can only be determined if the actual transmission is opened up and inspected by a mechanic specialized in transmission repair.