GM 15894106
Muffler & Pipe

The first step for Muffler replacement requires you to lift the vehicle and place support under it. First support the exhaust system and afterwards you can remove the Catalytic Converter bolts with its accompanying gasket. Remove the Muffler support from its attachment by first disengaging the exhaust hanger insulators. Position the Muffler onto the support and mount the exhaust hanger insulators. After applying the Catalytic Converter gasket, tighten the bolts securing the Catalytic Converter to 45 nm (33 ft. Lbs.) follow the inspection by taking off the exhaust support then check for system leaks and underbody contact before lowering the vehicle.

Anyway to replace the exhaust crossover pipe begins by taking off the fuel injector sight shield and air cleaner intake duct. The first step of replacement begins with removing exhaust crossover heat shield nuts followed by the heat shield. First disconnect all exhaust crossover pipe studs and bolts before removing the exhaust crossover pipe and its seal. Placing the exhaust crossover pipe seal on the exhaust crossover pipe at the right exhaust manifold connection should be the first step before installing the exhaust crossover pipe. Attach the exhaust crossover pipe studs and bolts while tightening them to 20 nm (15 ft. Lbs.). The exhaust crossover heat shield needs to be reinstalled followed by securing it with heat shield nuts which must be tightened to 25 nm (18 ft. Lbs.). To finish the installation process you should replace the air cleaner intake duct along with the fuel injector sight shield.

Begin by removing the catalytic converter.

Remove the left front tire and wheel, then the left inner fender splash shield.

Reinstall the transmission fluid filler tube, raise and support the vehicle, and use a jack stand to raise the frame before installing the left two frame bolts and removing the jack stand.