Geely EC718 2009 Workshop Manual page 407

Engine
Yes
Check whether the drive pulley is installed correctly? (Misaligned, etc?)
Step 4
Yes
Check whether the drive pulley is normal?
Step 5
Yes
Step 6 Check whether all fasteners associated with the drive belt are normal?
Yes
Replace the drive belt. Confirm the fault is fixed.
Step 7
2.6.7.11 Drive Belt Scream Diagnostic
Diagnostic Tips:
Body, suspension and other components loose or unreasonable installation may cause screams. If there is intermittent noise, check
the attached parts by changing the engine load. Check whether the air-conditioning system is over filled, power steering hose is
clamped, the power steering fluid is correct or whether the generator is faulty.
Fault Definition: The following conditions are the drive belt screams symptoms
– Drive belt screams due to slippage.
– Noise appears when a big load added to the drive belt, such as air-conditioning system compressor starting, the running engine
with the throttle quickly opening or drive belt skidding in a drive component.
Verify the fault. Does the engine scream?
Step 1
Yes
Step 2 Remove the drive belt. Confirm that the scream disappears?
Engine Mechanical System JL4G18-D
Refer to 2.6.7.9 Drive Belt Inspection
Replace the drive belt. Refer to
No
Belt Replacement
Reinstall the drive pulley, if necessary,
No
replace the drive belt.
Check whether the pulley is bent, twisted and so on.
Replace the failed pulley.
No
Tighten loosen fasteners.
No
To diagnose Tips
No
(a) Remove the drive belt. Refer to
Replacement.
(b) Run the engine, but no more than 30 s.
EC718/EC718RV EC715/EC715RV 10/2009
2-325
2.6.8.3 Drive
2.6.8.3 Drive Belt