Chery A1 2009 - Diagnosis and Testing; Exhaust System Diagnostic Chart

DIAGNOSIS AND TESTING
Exhaust System Diagnostic Chart
CONDITION POSSIBLE CAUSES CORRECTION
Excessive Exhaust Noise
· Leaks at pipe joints.
· Burned or blown out muffler.
· Burned or rusted-out exhaust pipe.
· Exhaust pipe leaking at manifold
flange.
· Exhaust manifold cracked or
broken.
· Leak between exhaust manifold
and cylinder head.
· Restriction in muffler or tailpipe.
· Exhaust system contacting body or
chassis.
· Tighten clamps to specified torque
at leaking joints.
· Replace muffler assembly.
· Replace exhaust pipe.
· Tighten connection attaching nuts.
· Replace exhaust manifold.
· Tighten exhaust manifold to
cylinder head stud nuts or bolts.
· Remove restriction, if possible.
Replace muffler or tailpipe, as
necessary.
· Re-align exhaust system to clear
surrounding components.
Leaking Exhaust Gases · Leaks at pipe joints.
· Tighten/replace clamps at leaking
joints.
Excessive Exhaust Temperature
· Ignition timing incorrect.
· Poor fuel quality.
· Engine running rich.
· Adjust the timing.
· Change and clean the fuel tank.
· Repair as needed.
07–4
Chery Automobile Co., Ltd.