Symptom Troubleshooting Index
SYMPTOM TROUBLESHOOTING INDEX
| Symptom |
Diagnostic Procedure |
Also check for |
| Engine overheats |
- Check the coolant level.
- Check for any engine coolant leakage (from gaskets, hoses, O-rings, etc.).
- Check for dirt, leaves, or insects on radiator and A/C condenser.
- Check for a broken drive belt (see
DRIVE BELT INSPECTION
).
- Check the drive belt auto-tensioner (see
DRIVE BELT REMOVAL/INSTALLATION
).
- Check for deteriorated coolant.
- Check for a damaged or deformed fan shroud.
- Inspect the fan motors (see
FAN MOTOR TEST
) or fan relays (see
POWER RELAY TEST
).
- Check the radiator cap (see
RADIATOR CAP TEST
).
- Check the thermostat (see
THERMOSTAT TEST
).
- Inspect the water pump (see
WATER PUMP INSPECTION
).
- Check for a plugged or deteriorated radiator hoses.
- Check for plugged heater core or hoses.
- Check for a damaged cylinder head gasket.
|
Proper radiator and condenser fan control and operation |
| The radiator fan does not run at all |
- Check for PGM-FI DTCs.
- Radiator fan circuit troubleshooting (see
RADIATOR FAN HIGH SPEED CIRCUIT TROUBLESHOOTING ).
|
Cleanliness and tightness of all connectors |
| The A/C condenser fan does not run at all |
A/C condenser fan circuit troubleshooting (see
A/C CONDENSER FAN HIGH SPEED CIRCUIT TROUBLESHOOTING
). |
|