For 1990-2009 cars

Problem | Action
--- | ---
Caution: In order to avoid being burned, do not service the exhaust system while it is still hot. Service the system when it is cool. Important: Refer to Symptoms - Engine Exhaust prior to beginning this table. 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.
Misaligned or improperly installed exhaust system components | Align and tighten the components to the specifications. Refer to Fastener Tightening Specifications .
Exhaust leaks at the following connections:

• | Exhaust manifold to pipe

• | Flanges

• | Pipe clamps

Tighten the components to the specifications. Refer to Fastener Tightening Specifications .

Seals or gaskets leaking

• | Exhaust manifold to cylinder head

• | Exhaust pipes to exhaust manifold

• | Catalytic converter connection

• | EGR connections

Replace the leaking seal or gasket. Refer to the affected components procedure for service.

Exhaust manifold cracked or broken | Replace the exhaust manifold. Refer to Exhaust Manifold Replacement .
Exhaust system component connection welds leaking | Replace the leaking component. Refer to the affected component's procedure for service.

• | Muffler damaged or leaking at the seams.

• | Pipe damaged or leaking

Replace the affected muffler or pipe. Refer to one of the following procedures:

• | Muffler Replacement

• | Front Pipe Replacement