GM 10056770
Converter & Pipe Insulator

The first step when replacing the exhaust hanger mounting bracket is to lift and support the vehicle while following all vehicle lifting procedures. Pull up and stabilize the exhaust system and detach the exhaust pipe rear hanger insulators that fasten to the exhaust muffler rear hanger bracket. The exhaust muffler rear hanger bracket removal process starts by unstowing the outboard rear bumper impact bar bolt followed by taking out the inboard rear bumper impact bar bolt. Install the exhaust muffler rear hanger bracket by first positioning it correctly then tighten both inboard and outboard rear bumper impact bar bolts to 25 Nm torque (18 ft. lbs.). Proceed by attaching the exhaust pipe rear hanger insulators to the exhaust muffler rear hanger bracket and remove the support from the exhaust system while inspecting for underbody contact before lowering the vehicle.

The first step to replace the exhaust hanger includes vehicle lifting by using supports to stabilize both the exhaust system and the vehicle height. After removing the exhaust pipe rear hanger insulator from its bracket on the exhaust pipe rear hanger bracket you should proceed to detach the exhaust pipe rear hanger bolt and exhaust pipe rear hanger bracket. The replacement process starts with removing the exhaust pipe rear hanger insulators from the exhaust muffler rear hanger bracket before removing both the rear bumper impact bar bolt and the exhaust muffler rear hanger bracket. Installation of the exhaust muffler rear hanger bracket begins by adhering to the Fastener Notice in Service Precautions. Fasten together the rear bumper impact bar bolt while tightening it to 25 Nm (18 ft. lbs.). The installation sequence begins with affixing the exhaust pipe rear hanger insulators onto the exhaust muffler rear hanger bracket and continuing with the exhaust pipe rear hanger bracket and its bolt which requires tightening to 25 Nm (18 ft. lbs.). You must place the exhaust pipe rear hanger insulator on the exhaust pipe rear hanger bracket. Then remove the exhaust system support and check for any contact between the exhaust system and underbody before lowering the vehicle.

Ensure the exhaust system is supported.

Reinstall the exhaust pipe hanger to the exhaust pipe and the exhaust hanger bracket, remove the support from the exhaust system, inspect for underbody contact, and lower the vehicle.

Attach the exhaust pipe rear hangers to the muffler and the rear exhaust hanger brackets.

Raise and support the vehicle.

Support the exhaust system before removing the exhaust pipe hanger from the exhaust pipe and the exhaust hanger bracket.

Remove the exhaust pipe rear hanger bolt and the exhaust pipe rear hanger bracket.

Attach the exhaust pipe rear hangers to the muffler and the rear exhaust hanger brackets.

Inspect the exhaust system for any underbody contact.

Connect the exhaust pipe hanger to the exhaust pipe and the exhaust hanger bracket.

Install the exhaust pipe rear hanger insulator to the exhaust pipe rear hanger bracket and lower the vehicle.

Take off the exhaust pipe rear hanger insulators from the exhaust muffler rear hanger bracket, then remove the rear bumper impact bar bolt and the exhaust muffler rear hanger bracket.

It is important to note the Catalytic Converter Movement Notice.

Position the exhaust muffler rear hanger bracket and install the inboard and outboard rear bumper impact bar bolts, tightening them to 25 Nm (18 ft. lbs.).