GM 12587497
Heat Shield, Upper

Vehicle lifting is the first step before starting the Exhaust Heat Shield replacement process. The first step involves separating the ho2s wiring that links post catalytic converter to the heat shield while also removing the catalytic converter pipe to gain access to the heat shield center rivet. Support the exhaust extension pipe after detaching its forward insulators from the underbody hangers. The first step involves removing the heat shield retaining nut then drilling out and removing the heat shield retaining rivets before taking off the heat shield from the vehicle. Place the new Exhaust Heat Shield correctly then fasten it with new retaining rivets. Fasten the Exhaust Heat Shield retaining nut to 10 nm (89 inch lbs.). The exhaust extension pipe can now be reinstated after the installer removes its back support. Next, he will secure the forward insulators to the underbody hangers before reconnecting the catalytic converter pipe. The post converter ho2s wiring should be reconnected while manually lowering the vehicle to its original position.

The replacement of the Exhaust Heat Shield requires removal of the Catalytic Converter first. The hanger insulators receive a mist of lubricant before the exhaust hanger insulators can be separated from underbody exhaust hangers and the Muffler assembly can be lowered. Begin by drilling out and removing the 4 heat shield rivets before taking out the heat shield nut and heat shield from its position. Secure the underbody-exhibited Exhaust Heat Shield by placing it into position before attaching its Exhaust Heat Shield nut and tightening it to 10 n.m (89 lb in). Install 4 new heat shield rivets together with lubricant application to the hanger insulators making installation easier. After raising the Muffler assembly you must install the exhaust hanger insulators onto underbody exhaust hangers before reinstalling the Catalytic Converter.

Install NEW heat shield rivets.

Position the heat shield to the underbody.

Take out the insulators from the resonator pipe and the muffler.

Position the exhaust heat shield to the underbody and install the heat shield nut.

First, remove the catalytic converter (LE5/L61 or LNF) as needed.

Remove the air cleaner bracket nuts and the air cleaner bracket.

First, remove the muffler.

Drill out and remove the 4 heat shield rivets and the heat shield nut, then take off the heat shield.

First, remove the catalytic converter.

Remove the heat shield nut and drill out the heat shield rivets.