Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Engine Overheats




Engine overheats

Diagnostic Procedure:

1. Check the coolant level.

2. Check for engine coolant leakage (from gaskets, hoses, O-rings, etc.).

3. Check for dirt, leaves, or insects on radiator and A/C condenser.

4. Check for deteriorated coolant.

5. Check for damaged or deformed fan shrouds.

6. Check the fan motors for proper direction of operation (blowing air toward the engine).

7. Inspect the fan motors Testing and Inspection or fan relays. Testing and Inspection

8. Check the radiator cap. Testing and Inspection

9. Check the thermostat. Testing and Inspection

10. Inspect the water pump. Testing and Inspection

11. Check for clogged or deteriorated radiator hoses.

12. Check for clogged heater core or hoses.

13. Check for a damaged cylinder head gasket.

Also check for:

- Proper radiator and condenser fan control and operation