Insufficient Cooling - Geely EC718 2009 Workshop Manual

Heating, Ventilation and A/C System

8.2.7.8 Insufficient Cooling

Malfunction Symptom Table
Symptoms
Engine coolant
temperature is too high
Condenser temperature
is too high
Compressor Operation
Abnormal
Suspected Malfunction Components
1. Engine runs at idle for too long.
2. Engine runs with heavy load for too long.
3. Lack of engine coolant
4. Engine coolant performance does not meet
the requirements
5. Thermostat Malfunction
6. Engine Malfunction
7. Cooling fan is running exception
8. Cooling fan does not work properly
9. Radiator Malfunction
10. Cooling fan cover is damaged
1. Poor condenser radiation
2. The engine coolant temperature is too high.
1. Compressor belt slipping
2. Compressor clutch slipping
3. Compressor abnormal sound
4. Frequent compressor start
5. Compressor inoperative
Automatic Air-conditioning
Repair Procedure
1. Reduce the engine idle running time.
2. Reduce the engine running time under heavy load.
3. Inspect for engine coolant leakage, add the engine
coolant to the standard amount.
4. Replace the engine coolant with coolant comply with
Geely requirements.
5. Replace the thermostat.
6. Inspect the engine cooling system.
7. Inspect the engine working condition.
8. Inspect the cooling fan motor and its circuit, if
necessary, replace it.
9. Clean the coolant reservoir.
10. Inspect the coolant reservoir, if necessary, replace
it.
11. Inspect the cooling fan cover, if necessary, replace
it.
1. Clean the condenser.
2. Inspect the condenser, if necessary, replace it.
3. Repair according to "the engine coolant
temperature is too high," symptom in this table.
1. Adjust the compressor belt, if necessary, replace it.
2. Inspect the compressor clutch, if necessary, replace
it.
3. Check refrigerant, lubricant quantity. Refer to "air-
conditioning system pressure abnormal" symptom
in this table.
4. Inspect the compressor clutch circuit.
5. Inspect the compressor, if necessary, replace it.
6. Inspect the air-conditioning pressure switch, if
necessary, replace it.
7. Inspect the air-conditioning control module, if
necessary, replace it.
8. Inspect the engine control module, if necessary,
replace it.
EC718/EC718RV EC715/EC715RV 10/2009
8-35