GM Service Manual Online
For 1990-2009 cars only

The exhaust system design will vary according to the model and the intended use of the vehicle.

The exhaust system uses a flange and a seal joint coupling to secure the exhaust pipe to the engine manifold.

The exhaust system is suspended by hangers that are attached to the frame members. The hangers allow some movement of the exhaust system.

Notice: Replacement of exhaust system parts must be OEM standard to ensure that the vehicle operates as designed.

When installing the new exhaust parts check for proper system alignment. Rattles or noise vibrations in the exhaust system usually are caused by misaligned parts, when aligning the exhaust system, leave all the bolts or the nuts loose until all the parts are properly aligned. Then tighten, working from the front to the rear.

Exhaust system performance complaints, such as excessive back pressure, have a noticeable effect on engine performance. However, other malfunctioning vehicle components have similar effects. Therefore it is necessary to refer to the diagnosis procedure when trying to identify and correct this type of problem.