Operation CHARM: Car repair manuals for everyone.

Diagnostic Strategies




ENGINE OIL
1. Remove the dipstick and check the engine oil level and condition.
2. Add or change oil if necessary.

COOLANT (ENGINE COLD)

WARNING: Removing the radiator cap or the coolant drain plug while the engine is running, or when the engine and radiator are hot is dangerous. Scalding coolant and steam may shoot out and cause serious injury. It may also damage the engine and cooling system.
Turn off the engine and wait until it is cool. Even then, be very careful when removing the cap. Wrap a thick cloth around it and slowly turn it counterclockwise to the first stop. Step back while the pressure escapes.
When you're sure all the pressure is gone, press down on the cap - still using a cloth - turn it, and remove it.


1. Verify that the coolant level is near the radiator filler neck.




2. Verify that the coolant level in the coolant reservoir is between the FULL and LOW marks.
3. Add coolant if necessary.




BATTERY
1. Clean any corrosion on the clamps or battery posts.
2. Verify that the battery top is clean. If necessary, clean with baking soda and water.
3. Verify that cables are in good condition and not frayed or corroded. Repair or replace if necessary.
4. Verify that cable clamps are tight.

NOTE: Because this is a maintenance-free battery, it is not necessary to check the fluid level.

NOTE:Removing the label on the top of the battery or removing the vent caps will void the battery's warranty.




AIR CLEANER ELEMENT INSPECTION
1. Check the air cleaner element for excessive dirt and for oil and damage.
2. Replace the element if necessary.

CAUTION: Cleaning the element with compressed air will reduce the element's ability to filter the air. Don't use compressed air to clean the element.