Dodge Dakota Sport 2001 Service Manual page 1302

AN
DIAGNOSIS AND TESTING—EXHAUST SYSTEM
CONDITION
EXCESSIVE EXHAUST NOISE
LEAKING EXHAUST GASES
EXHAUST SYSTEM DIAGNOSIS CHART
POSSIBLE CAUSE
1. Leaks at pipe joints.
2. Burned or blown out muffler.
3. Burned or rusted-out exhaust
pipe.
4. Exhaust pipe leaking at manifold
flange.
5. Exhaust manifold cracked or
broken.
6. Leak between exhaust manifold
and cylinder head.
7. Restriction in muffler or tailpipe.
8. Exhaust system contacting body
or chassis.
1. Leaks at pipe joints.
EXHAUST SYSTEM
CORRECTION
1. Tighten clamps to specified
torque at leaking joints (Refer to 11
- EXHAUST SYSTEM -
SPECIFICATIONS).
2. Replace muffler assembly (Refer
to 11 - EXHAUST SYSTEM/
MUFFLER - REMOVAL). Check
exhaust system.
3. Replace exhaust pipe (Refer to
11 - EXHAUST SYSTEM/EXHAUST
PIPE - REMOVAL).
4. Tighten connection attaching nuts
(Refer to 11 - EXHAUST SYSTEM -
SPECIFICATIONS).
5. Replace exhaust manifold (Refer
to 9 - ENGINE/MANIFOLDS/
EXHAUST MANIFOLD -
REMOVAL).
6. Tighten exhaust manifold to
cylinder head stud nuts or bolts
(Refer to 9 - ENGINE -
SPECIFICATIONS).
7. Remove restriction, if possible.
Replace muffler or tailpipe, as
necessary.
8. Re-align exhaust system to clear
surrounding components.
1. Tighten/replace clamps at leaking
joints (Refer to 11 - EXHAUST
SYSTEM - SPECIFICATIONS).
11 - 3