Geely Diagnosis Flow. Manual part — 7

25

Engine noise over normal level

Exhaust system leaking or block

Intake system leak or block

Generator water pump, booster pump etc.

sound abnormally

Water tank fan and AC fan sound abnormally

Water temperature over normal value

Engine interferences with relevant accessories

Compressing ratio over normal value

Engine operates abnormal

Check

Check and replace

Check

Check

Check

Check and replace

Check and replace

Check

Normal

Normal

Normal

Normal

Normal

Normal

Normal

Leak or block

Over normal value

Interferen

Abnormal

Abnormal sound

Abnormal sound

Leaking or block

Abnormal

26

No. 014 Water temperature over normal value after AC activated

Malfunction Cause

Solution

Insufficient coolant fluid

Fill coolant according to requirements.

Radiator fan operates abnormal

Radiator fan blade deformed and stuck. Replace radiator
fan assembly when the fan speed is low.

Too much refrigerant

Check refrigerant, whether it is too much, which increases
engine load and high water temperature. The refrigerant
shall be filled to standard level.

Condenser fan malfunction

Maintain fan wire and motor.

AC system pressure over normal value

Adjust system pressure to normal value.

The cooling and cycling performance of cooling
system lower than normal level

Too much furring contains in engine water pipe, which
results poor water cycling and cooling, and shall be
cleaned. Clean or replace the radiator, when it is dirty and
blocked.

Generator belt loose

Adjust belt tightness according to requirement.

Water pump operates abnormal and results
poor cooling water recycles.

Maintain or replace pump assembly

Thermostat fails to open

Replace thermostat assembly

ECU malfunction

Maintain ECU and all wire terminals

Radiator over
heated after
AC activated
when driving

Engine operates abnormally

Disassemble and maintain engine

Water temperature over normal value after AC

activated

Insufficient coolant fluid

Radiator fan operates abnormal

Too much refrigerant

Condenser fan malfunction

AC system pressure over normal value

The cooling and cycling performance of cooling system lower than
normal level

Poor cooling water recycles

ECU failure

Engine operates abnormally

Drain

Add

Check

Check and replace

Check and replace

Check

Check

Check

Replace

Abnormal

Over normal value

Abnormal

Poor

Not smooth

Over normal value

Poor

Lack

Failure

Normal

Normal

Normal

Normal

Normal

Normal

Normal

Normal

27

No. 015 Oil pan leak

Malfunction Cause

Solution

Too much oil

Fill oil according to standard. For 4-cylinder engine, dry, 3.5L; wet,
3.0L. For 4G18 engine, with oil filter, 4.0L; without oil filter, 3.8L. For
3-cylinder engine, 3.0L.

Oil pan gasket damage

Replace oil pan gasket; tighten the bolts after sealant coated.

Rear end cover gasket leak

Replace rear end cover gasket and coat with sealant.

Rear oil pipe capping leak

Replace or maintain rear main oil pipe capping.

There is blow hole on rear end

Maintain the blow hole on rear end.

Oil pan bolt loose

Tighten oil pan retaining bolt or replace damaged bolt.

Oil pan damaged or deformed

Maintain or replace oil pan.

Oil pan retaining bolt adjust to 4.9NM, evenly.

Irregular assembly procedure

Coat sealant with proper quantity, otherwise, the gasket may slid and
move.

Unplug or replace gas exhaust system (PCV valve)

Inner engine pressure over
normal value

Engine cylinder, piston ring and piston worn out. Maintain or replace
relevant component when necessary.

Oil leak at rear end of
oil pan after vehicle
parked.

Crankshaft rear oil seal ageing
or damage

Replace crankshaft rear oil seal.

28

Oil pan leaking

Too much oil

Oil pan gasket damage

Irregular assembly procedure

Oil pan damaged

Rear end panel deformed or seal gasket failure

Rear oil pipe capping leaking

Oil pan bolt loose

Inner engine pressure over normal value

Cranksahfe rear oil seal ageing or damage

Remount

Fill oil according to standard

Check

Check and replace

Check and replace

Tighten

Replace

Replace

Replace

Abnormal

Over normal value

Blocked

Too much

Damage

Irregular

Damage

Abnormal

Loose

Normal

Normal

Normal

Normal

Normal

Normal

Normal

Normal