Operation CHARM: Car repair manuals for everyone.

Engine Cooling System Inspection

ENGINE COOLING SYSTEM INSPECTION
Inspect the hoses and replace if they are cracked, swollen or deteriorated.
Inspect all pipes, fittings and clamps; replace as needed.
Clean the outside of the radiator and air conditioning condenser. Inspect the front surface of the radiator and A/C condenser. Insects, leaves, debris, etc. can affect the performance of the radiator and A/C condenser.
If the front surface of either or both of these components is found to be in need of cleaning, the unwanted material can be removed by performing the following procedures:
- Ensure that the engine is off and cool.
- Blow compressed air through the radiator from the rear surface of the radiator toward the front of the vehicle.
- If compressed air is not available, use a water hose to force water through the radiator from the rear surface of the radiator toward the front of the vehicle.
To help ensure proper cooling system pressure performance, a pressure test of the cooling system and pressure cap is recommended at least once a year.