Exhaust Leakage

WARNING: This page is about a different car, the 2009 Pontiac Torrent and 2009 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.

Problem	Action
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 AIR connections to the exhaust manifold or cylinder head	Replace the leaking seal or gasket. Refer to the affected component's procedure for service.
Exhaust manifold cracked or broken.	Replace the exhaust manifold. Refer to Exhaust Manifold Replacement - Left Side (LY7) or Exhaust Manifold Replacement - Left Side (LNJ) or Exhaust Manifold Replacement - Right Side (LNJ) or Exhaust Manifold Replacement - Right Side (LY7) .
Exhaust system component connection welds leaking.	Replace the leaking component. Refer to the affected component's procedure for service.
Catalytic converter, muffler, or resonator, if equipped, damaged or leaking at the seams.	Replace the affected catalytic converter, muffler, or resonator. Refer to one of the following: Catalytic Converter Replacement Catalytic Converter Replacement - Left Side (LY7) Catalytic Converter Replacement - Right Side (LY7) Exhaust Muffler Replacement (LNJ) or Exhaust Muffler Replacement (LY7)