Muffler Replacement (3.6L LY7)

Fig 1: View Of Muffler & Attachments

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
Preliminary Procedure: Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
1	Retaining Nuts (Qty: 2) NOTE: Refer to Fastener Notice . Tip: Use a utility jack to support the exhaust system. Tighten: 45 N.m (33 lb ft)
2	Catalytic Convertor Gasket Tip: DO NOT re-use the gasket, replace with NEW.
3	Front Insulator Tip: If the insulator is found to be worn or damaged, replace the insulator.
4	Intermediate Insulator Tip: If the insulator is found to be worn or damaged, replace the insulator.
5	Muffler/Exhaust System Tip: Remove the utility jack. With the aid of an assistant, remove the muffler/exhaust.
6	Rear Insulator (Qty: 4) Tip: If the insulators is found to be worn or damaged, replace the insulator.