Chery T21 2014 Service Manual page 598

11 - SQR484F EXHAUST SYSTEM
DIAGNOSIS & TESTING
Problem Symptoms Table
HINT:
Use the table below to help determine the cause of problem symptoms. Check each suspected area in
sequence. Repair or replace the faulty components, or adjust as necessary.
Symptom
Excessive exhaust noise
11
Excessive exhaust temperature
Exhaust pipe leakage
Exhaust System Gas Leakage Inspection
Method to check gas leakage in exhaust system joints:
Warm up engine for a while, and check for gas leakage in the exhaust system joints. A certain amount of gas
leakage at the exhaust pipe joint is allowed, but gas leakage at the joint between exhaust manifold and
cylinder head is prohibited. The judging standard is that engine does not shudder and no "poof" sound can be
heard at the joints.
6
11–
Suspected Area
Exhaust pipe (loose connection)
Precatalytic converter assembly (damaged
or leaked)
Main catalytic converter assembly
(damaged or leaked)
Center pipe assembly (damaged or leaked)
Muffler assembly (damaged or leaked)
Exhaust manifold assembly (broken or
leaked)
Precatalytic converter assembly (blocked)
Main catalytic converter assembly
(blocked)
Incorrect ignition timing in ignition system
Inadequate gas mixture combustion
Exhaust pipe gasket (damaged)
Exhaust pipe (damaged)
Chery Automobile Co., Ltd.
See page
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11-10
11-13
11-15
11-17
11-7
11-10
11-13
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