Engine Overheat Troubleshooting
WARNING: This page is about a different variant/trim than selected.
| 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. | |
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CAUTION:
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| Inspect for leakage and loose coolant hoses (radiator hose, heater hose, oil cooler hose, etc.). |
Reinspect for leakage after reinstalling hoses and clamps. | |
| Checking for coolant leaks of Integrated Thermal Management Module (ITM) | Replace O-ring or replace the integrated thermal management module (ITM) if required | |
| Inspecting the heater pipe connection to find coolant leaks. | 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.
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Check mounting status of ground cable. | |
Information
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| Diagnostic device | Inspect self-diagnostic code using GDS. | Check coolant temperature sensor, wiring, connector, etc. |
| Unit inspection | Inspect water pump impeller. | Replace water pump. |