Diagnosis And Testing

WARNING: This page is about a different car, the 2012 Dodge Charger. However, it is still accessible from the selected car via links, so may be relevant.

EXHAUST SYSTEM DIAGNOSIS CHART

CONDITION	POSSIBLE CAUSE	CORRECTION
EXCESSIVE EXHAUST NOISE	1. Leaks at pipe joints.	1. Tighten flanges to specified torque at leaking joints. Refer to SPECIFICATIONS .
	2. Burned, rusted-out, or blown out muffler.	2. Replace muffler/tailpipe assembly. Refer to MUFFLER, EXHAUST, REMOVAL . Check exhaust system.
	3. Burned or rusted-out exhaust pipe.	Replace exhaust pipe.
	4. Exhaust pipe leaking at manifold flange.	4. Tighten connection attaching nuts. Refer to SPECIFICATIONS .
	5. Exhaust manifold cracked or broken.	5. Replace exhaust manifold. Refer to MANIFOLD, EXHAUST, REMOVAL, 5.7L or MANIFOLD, EXHAUST, REMOVAL .
	6. Leak between exhaust manifold and cylinder head.	6. Tighten exhaust manifold to cylinder head stud nuts or bolts. Refer to SPECIFICATIONS or SPECIFICATIONS or SPECIFICATIONS .
	7. Restriction in muffler or tailpipe.	7. Remove restriction, if possible. Replace muffler or tailpipe, as necessary.
	8. Exhaust system contacting body or chassis.	8. Re-align exhaust system to clear surrounding components.
	9. Exhaust valve stuck open	9. Clean spring and joints. Replace the exhaust pipe, as necessary.
LEAKING EXHAUST GASES	1. Leaks at pipe joints.	1. Tighten flanges. Refer to SPECIFICATIONS .
LACK OF POWER	1. Exhaust valve stuck closed	1. Clean spring and joints. Replace the exhaust pipe, as necessary.
	2. Restriction in muffler or tailpipe.	2. Remove restriction, if possible. Replace muffler or tailpipe, as necessary.
	3. Restriction in catalytic converter or diesel particulate filter.	3. Remove restriction, if possible. Replace catalytic converter or diesel particulate filter, as necessary.