1 page 1 Models J08C-TP and J08C-TR 3-1-2 ENGINE TROUBLESHOOTING (ENGINE) Symptom Possible cause Remedy/Prevention Engine overheating Coolant G Insufficient coolant ........................................ Add coolant ` G Defective thermostat ..................................... Replace the thermostat G Overflow of coolant due to leakage of .......... Repair exhaust into cooling system G Damaged rubber hose .................................. Replace rubber hose G Coolant leakage due to deteriorated............. Replace rubber hose rubber hose G Coolant leakage from coolant pump ............. Replace the coolant pump G Coolant leakage from rubber hose ...............
Retighten or replace clamp G Coolant leakage from cylinder head ............. Replace gasket connection gasket Coolant pump G Bearing seizure ............................................. Replace G Damaged (corroded) vane ............................ Replace vane Radiator G Clogged with rust and scale.......................... Clean radiator G Clogged with iron oxide due to leakage ........ Clean coolant passage and of exhaust into cooling system correct exhaust leakage G Coolant leakage ............................................ Repair or replace radiator G Damaged cooling fan .................................... Replace cooling fan G Clogged radiator core due to mud or ............
Clean radiator G Defective radiator cap pressure valve .......... Replace radiator cap other debris G Incorrect injection timing ............................... Adjust injection timing G Reduced injection pressure .......................... Adjust injection pressure G Poor fuel........................................................ Use good quality fuel G Poor nozzle spray ......................................... Adjust or replace nozzle G Unsatisfactory automatic timer...................... Repair or replace timer advance angle Abnormal combustion