Engine Cooling Symptom Diagnosis
ENGINE COOLING SYMPTOM DIAGNOSIS CHART
| Condition | Possible Cause | Action |
|---|---|---|
| Engine overheats (It is in case that radiator fan operates) | Loose or broken water pump belt | Adjust or replace . |
| Not enough coolant | Check coolant level and add as necessary . | |
| Faulty thermostat | Replace . | |
| Faulty water pump | Replace . | |
| Dirty or bent radiator fins and/or A/C condenser fins | Clean or remedy . | |
| Coolant leakage on cooling system | Repair . | |
| Clogged radiator and/or A/C condenser | Check and replace radiator and/or A/C condenser as necessary . | |
| Faulty radiator cap | Replace . | |
| Improper ignition timing | Adjust . | |
| Dragging brakes | Adjust brake . | |
| Slipping clutch | Adjust or replace . | |
| Poor charge battery | Check and replace as necessary . | |
| Poor generation generator | Check and repair . | |
| ECT sensor faulty | Check and replace as necessary . | |
| Radiator cooling fan relay No.2 and/or No.3 faulty | Refer to RADIATOR COOLING FAN RELAY INSPECTION . | |
| Radiator fan motor faulty | Check and replace as necessary . | |
| A/C condenser cooling fan relay faulty | Check A/C condenser cooling fan relay (Refer to COMPRESSOR RELAY AND CONDENSER COOLING FAN RELAY INSPECTION: MANUAL TYPE ). | |
| A/C condenser cooling fan motor faulty | Check A/C condenser cooling fan motor (Refer to CONDENSER COOLING FAN INSPECTION: MANUAL TYPE ). | |
| ECM faulty | Check and replace as necessary . | |
| Wiring or grounding faulty | Repair as necessary . | |
| Equipped with too much electric load part | Dismount . | |
| Equipped with too much part to bumper air inlet | Dismount . | |
| A/C system faulty | Check A/C system (Refer to AIR CONDITIONING SYSTEM CHECK: MANUAL TYPE or AIR CONDITIONING SYSTEM CHECK: AUTOMATIC TYPE ). | |
| Power steering system faulty | Check power steering system (Refer to POWER STEERING (P/S) SYSTEM (IF EQUIPPED) INSPECTION ). | |
| EGR system faulty | Check EGR system (Refer to EGR SYSTEM INSPECTION (USING SUZUKI SCAN TOOL) ). | |
| IAC system faulty | Check IAC system (Refer to IDLE AIR CONTROL (IAC) SYSTEM CHECK ). | |
| Engine overheats (It is in case that radiator fan won't operate) | Fuse blown | Check 30A fuse of main fuse box and check for short circuit to ground . |
| Radiator cooling fan relay No.1 | Refer to RADIATOR COOLING FAN RELAY INSPECTION . | |
| ECT sensor faulty | Check and replace as necessary . | |
| Radiator cooling fan motor faulty | Refer to RADIATOR COOLING FAN ON-VEHICLE INSPECTION . | |
| Wiring or grounding faulty | Repair as necessary . | |
| ECM faulty | Check and replace as necessary . |