Muffler Heat Shields: Removal

CAUTION: HEAVY WORK GLOVES AND EYE PROTECTION MUST BE WORN WHEN MODIFYING THE EXHAUST HEAT SHIELD, AND WHEN REMOVING AND INSTALLING THE INTERMEDIATE EXHAUST PIPE ISOLATOR. THE EXHAUST HEAT SHIELD EDGES ARE EXTREMELY SHARP AND CONTACT WITH THE EDGES COULD CAUSE PERSONAL INJURY.

NOTE: Inspect the shields for cracks, tears, and missing fasteners. All shields must be firmly attached. shields must be installed whenever removed for exhaust system or body repairs, etc. to prevent vehicle panel and fuel tank damage.

Raise vehicle squarely on a lift.

Fig 1: Vehicle Support Points
Courtesy of GENERAL MOTORS CORP.
Remove muffler strap fastener and hanger.
Lower muffler until pipe assembly rests on suspension crossmember.
NOTE: Use extreme care when grinding off the rivet heads. Always install all the shields to insure against panel and fuel tank damage.
Remove muffler heat shield rivets by guiding off the heads with a small grinder or by punching out the center of the rivets with a 3/32 in. punch. Use a 3/16 in. drill to remove the rivet without damaging retainer hole.