Exhaust System Inspection

WARNING: This page is about a different variant/trim than selected.

EXHAUST SYSTEM DIAGNOSIS CHART

CONDITION	POSSIBLE CAUSE	CORRECTION
EXCESSIVE EXHAUST NOISE OR LEAKING EXHAUST GASES	1. Leaks at pipe joints.	1. Tighten clamps/bolts at leaking joints.
	2. Rust through or blown out muffler.	2. Replace muffler. Inspect exhaust system.
	3. Broken or rusted out exhaust pipe.	3. Replace exhaust pipe.
	4. Exhaust pipe leaking at manifold flange.	4. Tighten/replace flange attaching nuts/bolts.
	5. Exhaust manifold cracked or broken.	5. Replace exhaust manifold.
	6. Leak between exhaust manifold and cylinder head.	6. Tighten exhaust manifold to cylinder head bolts.
	7. Catalytic converter rusted or blown out.	7. Replace catalytic converter assembly and gasket.
	8. Restriction in exhaust system.	8. Remove restriction, if possible. Replace restricted part if necessary.
CAUTION: When servicing or replacing exhaust system components, disconnect the oxygen sensor connector(s). Allowing the exhaust to hang by the oxygen sensor wires will damage the harness or oxygen sensor.

CATALYTIC CONVERTER

Look at the stainless steel body of the Catalytic Converter assembly, inspect for bulging or other distortion that could be a result of overheating. Inspect for:

Indication of exhaust gas leakage such as soot trails
Joint misalignment
Denting of greater than 6.3 mm (0.25 in.)
Outer shell torn, cracked or otherwise damaged
Loose or damaged core