GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2009 🢒 Vibe - FWD 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Exhaust Leakage

Problem

Action

Warning: Refer to Exhaust Service Warning in the Preface section.

Note: 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: