Installation Procedure

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Rear Floor Panel Exhaust Heat Shield Nuts And Heat Shield

Courtesy of GENERAL MOTORS CORP.

CAUTION:

Refer to Fastener Caution .

Position the rear floor panel exhaust heat shield to the studs and install the heat shield nuts and tighten to 9 N.m (80 lb in).

Fig 2: Floor Panel Exhaust Heat Shield Nuts & Heat Shields

Courtesy of GENERAL MOTORS CORP.

If the vehicle is a Suburban, Yukon XL, Yukon Denali XL, Escalade ESV, Escalade EXT or a Avalanche, position the exhaust heat shield to the studs and install the heat shield nuts, as required and tighten to 9 N.m (80 lb in).

Fig 3: Floor Panel Exhaust Heat Shield Nuts And Heat Shields

Courtesy of GENERAL MOTORS CORP.

If the vehicle is a Tahoe, Yukon, Yukon Denali, or a Escalade, position the exhaust heat shield to the studs and install the heat shield nuts, as required and tighten to 9 N.m (80 lb in).

Fig 4: Left Front Floor Panel Exhaust Heat Shield Nuts And Heat Shield

Courtesy of GENERAL MOTORS CORP.

Position the left front floor panel exhaust heat shield to the studs and install the heat shield nuts and tighten to 9 N.m (80 lb in).
Install the muffler assembly, as required. Refer to Exhaust Muffler Replacement (LC9, LMG, LZ1, L20) , Exhaust Muffler Replacement (L96) .
Install the catalytic converter, if necessary. Refer to one of the following:
- Catalytic Converter Replacement (with Exhaust Clamp)
- Three-Way Catalytic Converter Replacement