Problem
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Action
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Warning:
While engine is operating, the exhaust system
will become extremely hot. To prevent burns avoid contacting a hot
exhaust system. |
DEFINITION: An exhaust leak may show stains at the area of the
leak. The leak may be felt by holding a hand close to the suspected
areas or using a smoke pencil. The leak may make a popping or
hissing noise.
Refer to
Symptoms - Engine Exhaust prior to beginning this table.
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Misaligned or improperly installed exhaust system components
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Align and tighten the components to the specifications. Refer to
Fastener Tightening Specifications .
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Exhaust leaks at the following connections:
| • |
Exhaust manifold to pipe |
|
Tighten the components to the specifications. Refer to
Fastener Tightening Specifications .
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Seals or gaskets leaking.
| • |
Exhaust manifold to cylinder head |
| • |
Exhaust pipes to exhaust manifold |
| • |
Catalytic converter connection |
| • |
AIR connections to the exhaust manifold or
cylinder head |
|
Replace the leaking seal or gasket. Refer to the affected
components procedure for service.
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Irregularities at the mating surfaces on the flange
connections
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Repair as required or replace the affected component. Refer to the
affected components procedure for service.
|
Exhaust manifold cracked or broken
|
Replace the exhaust manifold. Refer to
Exhaust Manifold Replacement .
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Exhaust system component connection welds leaking
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Replace the leaking component. Refer to the affected component's
procedure for service.
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Duct damaged or leaking at the seams
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Replace the affected duct. Refer to
Air Cleaner Inlet Duct Replacement .
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