Engine Cooling Symptom Diagnosis
WARNING: This page is about a different car, the 2011 Suzuki SX4. However, it is still accessible from the selected car via links, so may be relevant.
ENGINE COOLING DIAGNOSTIC INFORMATION AND PROCEDURES
| Condition | Possible Cause | Action |
|---|---|---|
| Engine overheats (Radiator fan operates) | Loose or broken accessory drive belt | Check accessory drive belt See ACCESSORY DRIVE BELT TENSION INSPECTION . |
| Not enough coolant | Check coolant level and add as necessary . | |
| Faulty thermostat | Check thermostat See Thermostat Inspection . | |
| Faulty water pump | Check water pump See Water Pump Inspection . | |
| Dirty or bent radiator fins | Clean or remedy . | |
| Coolant leakage on cooling system | Check cooling system for leakage See Engine Cooling System Inspection . | |
| Clogged radiator | Replace radiator . See Radiator Removal and Installation | |
| Faulty radiator cap | Check radiator cap . | |
| Dragging brakes | Check brake See BRAKES SYMPTOM DIAGNOSIS . | |
| Slipping clutch | Check clutch See CLUTCH SYSTEM SYMPTOM DIAGNOSIS . | |
| Poor charged battery | Check battery . | |
| Poor electricity generated by generator | Check generator See GENERATOR TEST . | |
| ECT sensor faulty | Check ECT sensor . See ENGINE COOLANT TEMPERATURE (ECT) SENSOR INSPECTION | |
| Radiator cooling fan motor faulty | Check radiator cooling fan motor . See Radiator Cooling Fan Assembly On-Vehicle Inspection | |
| ECM faulty | Check ECM and its circuit . See INSPECTION OF ECM AND ITS CIRCUITS | |
| Wiring or grounding faulty | Repair wiring . | |
| Equipped with too many additional electrical part(s) | Dismount them . | |
| Engine overheats (Radiator fan does not operate) | Fuse blown | Check fuse . |
| Radiator cooling fan relay faulty | Check radiator cooling fan relay . See Radiator Cooling Fan Relay Inspection | |
| ECT sensor faulty | Check ECT sensor . See ENGINE COOLANT TEMPERATURE (ECT) SENSOR INSPECTION | |
| Radiator cooling fan motor faulty | Check radiator cooling fan motor . See Radiator Cooling Fan Assembly On-Vehicle Inspection | |
| Wiring or grounding faulty | Repair as necessary. | |
| ECM faulty | Check ECM and its circuit . See INSPECTION OF ECM AND ITS CIRCUITS |