Diagnostic Information And Procedures; Engine Cooling Symptom Diagnosis - Suzuki GRAND VITARA Owner's Manual

Engine Cooling Symptom Diagnosis

Condition
Engine overheats
(Radiator fan operates)
Engine overheats
(Radiator fan does not
operate)

Diagnostic Information and Procedures

Possible cause
Loose or broken water pump belt
Not enough coolant
Faulty thermostat
Faulty water pump
Dirty or bent radiator fins
Coolant leakage on cooling system
Clogged radiator
Faulty radiator cap
Improper ignition timing
Dragging brakes
Slipping clutch
Poor charge battery
Poor generation generator
ECT sensor faulty
Radiator cooling fan relay No.2 and/or
No.3 faulty
Radiator fan motor faulty
ECM faulty
Wiring or grounding faulty
Equipped with too much electric load
part(s)
Fuse blown
Radiator cooling fan relay No.1 faulty
ECT sensor faulty
Radiator cooling fan motor faulty
Wiring or grounding faulty
ECM faulty
Engine Cooling System:
Correction / Reference Item
Adjust or replace.
Check coolant level and add as necessary.
Replace.
Replace.
Clean or remedy.
Repair.
Check and replace radiator as necessary.
Replace.
Adjust.
Adjust brake.
Adjust or replace.
Check and replace as necessary.
Check and repair.
Check and replace as necessary.
Check and replace as necessary.
Check and replace as necessary.
Check and replace as necessary.
Repair as necessary.
Dismount.
Check 15 A fuse of relay/fuse box and check
for short circuit to ground.
Check and replace as necessary.
Check and replace as necessary.
Check and replace as necessary.
Repair as necessary.
Check and replace as necessary.
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