Engine Overheat Troubleshooting |
Inspection | Remedy | ||||||||
Visual inspection | Inspect for shortage of coolant in reservoir tank . | Reinspect after replenishing coolant. | |||||||
Inspect for coolant pollution after removing radiator cap.
| Reinspect after replacing coolant. | ||||||||
Inspect for leakage and loose coolant hoses (radiator hose, heater hose, oil cooler hose, etc.). | Reinspect for leakage after reinstalling hoses and clamps. | ||||||||
Inspect for leakage on water inlet fitting mounting part. | Reinspect for leakage after replacing O-ring. | ||||||||
Reinspect for leakage after tightening to the specified torque. | |||||||||
Inspect drive belt (for normal operation of water pump). | Adjust drive belt tension or replace. | ||||||||
Inspect for leakage on water pump gasket mounting part. | Reinspect for leakage after replacing gasket. | ||||||||
Reinspect for leakage after tightening to the specified torque. | |||||||||
Inspect for loose coolant temperature sensor, cooling fan connector and pin. | Reinstall loose connector. | ||||||||
Replace relevant part if connector pin is damaged. | |||||||||
Inspect operation status of cooling fan. - Check operation status by switching ON/OFF the heater control A/C.
| Check mounting status of ground cable. | ||||||||
Diagnostic device | Inspect self-diagnostic code using KDS/GDS. | Check coolant temperature sensor, wiring, connector, etc. | |||||||
Unit inspection | Inspect water pump impeller. | Replace water pump. | |||||||
Inspect for foreign materials and status of thermostat valve. | Inspect unit after removing foreign materials. | ||||||||
Inspect for stuck thermostat valve. - Immerse thermostat in water heated to over 95°C (203°F), then heat for at least 3 minutes to check valve lift.
| Check valve lift. - Replace thermostat if valve lift is below specification or valve is stuck. |
Hands Free Switch: Repair procedures
Inspection
1.
Check the handsfree remote control switch for resistance between No.3 and No.4 terminals in each switch position.
[Call + Hang Up]
SwitchConnector terminalResistance (±5%) Output ...
Cylinder Head: Repair procedures
Removal
•
Use fender covers to avoid damaging painted surfaces.
•
To avoid damaging the cylinder head, wait until the engine
coolant temperature dro ...