| Engine overheats |
- Check the coolant level (see
COOLANT CHECK
).
- Check for the coolant leakage (from gaskets, hoses, O-rings, etc.).
- Check for dirt, leaves, or insects on the radiator and A/C condenser.
- Check for deteriorated coolant.
- Check for damaged or deformed fan shrouds.
- Inspect the fan motors (see
FAN MOTOR TEST
) or fan relay (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 plugged or deteriorated radiator hoses.
- Check for plugged heater core or hose(s).
- Check for a damaged cylinder head gasket.
|
Proper radiator and condenser fan control and operation |
| Both the radiator fan and the A/C condenser fan do not run when the engine coolant temperature is above 207°F (97 °C) |
- Check for PGM-FI DTCs (see
GENERAL TROUBLESHOOTING INFORMATION
).
- Radiator fan and A/C condenser fan circuit troubleshooting (see
RADIATOR FAN AND A/C CONDENSER FAN CIRCUIT TROUBLESHOOTING ).
|
Cleanliness and tightness of all connectors |
| The A/C condenser fan runs, but the radiator fan does not run at all |
- Check for PGM-FI DTCs (see
GENERAL TROUBLESHOOTING INFORMATION
).
- Radiator fan circuit troubleshooting (open) (see
RADIATOR FAN AND A/C CONDENSER FAN CIRCUIT TROUBLESHOOTING ).
|
Cleanliness and tightness of all connectors |
| The radiator fan runs, but the A/C condenser fan does not run at all |
- Check for PGM-FI DTCs (see
GENERAL TROUBLESHOOTING INFORMATION
).
- A/C condenser fan circuit troubleshooting (open) (see
A/C CONDENSER FAN CIRCUIT TROUBLESHOOTING (OPEN) ).
|
Cleanliness and tightness of all connectors |
| The radiator fan runs with the ignition switch in ON (II), the A/C off, and the engine coolant temperature below 201°F(94°C) |
- Check for PGM-FI DTCs (see
GENERAL TROUBLESHOOTING INFORMATION
).
- Radiator fan circuit troubleshooting (Short) (see
A/C CONDENSER FAN CIRCUIT TROUBLESHOOTING (OPEN) ).
|
Cleanliness and tightness of all connectors |
| The A/C condenser fan runs with the ignition switch in ON (II), the A/C off, and the engine coolant temperature below 201°F (94 °C) |
- Check for PGM-FI DTCs (see
GENERAL TROUBLESHOOTING INFORMATION
).
- A/C condenser fan circuit troubleshooting (Short) (see
A/C CONDENSER FAN CIRCUIT TROUBLESHOOTING (SHORT) ).
|
Cleanliness and tightness of all connectors |