For 1990-2009 cars

Problem | Action
--- | ---
Caution: 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.
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 connections

• | Exhaust gas recirculation (EGR) connections, if equipped

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

Irregularities at the mating surfaces on the flange connections | 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 .
Exhaust system component connection welds leaking | Replace the leaking component. Refer to the affected component's procedure for service.
Muffler or resonator, if equipped, damaged or leaking at the seams | Replace the affected muffler. Refer to Muffler Replacement .