Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Install the exhaust pipe with a NEW gasket to the turbocharger. Align the tab on the gasket at the turbocharger to face inward.
To aid in installation temporarily install an exhaust pipe to exhaust manifold bolt.

NOTE: Refer to Fastener Notice in Cautions and Notices.

Fig 1: Exhaust Pipe To Exhaust Manifold Bolts (6.6L (LB7) Engine)
Courtesy of GENERAL MOTORS CORP.
Install the exhaust pipe to turbocharger bolts (1).
Tighten: Tighten the bolts to 53 N.m (39 lb ft).
Install the exhaust pipe heat shield but do not install the bolts.
Raise the vehicle.
Install the exhaust pipe with a NEW gasket to the exhaust manifold. Align the tabs on the gasket to face outward.
Install the exhaust pipe to exhaust manifold bolts (2).
Tighten: Tighten the bolts to 53 N.m (39 lb ft).

Fig 2: Exhaust Pipe Heat Shield And Bolts (6.6L (LB7) Engine)

Courtesy of GENERAL MOTORS CORP.

Install the exhaust pipe heat shield bolts.
Tighten: Tighten the bolts to 8 N.m (71 lb in).

Fig 3: View Of Left Exhaust Heat Shield & Nuts

Courtesy of GENERAL MOTORS CORP.

Install the left side exhaust heat shield (3) at the dash panel.
Install the heat shield nuts (2).
Tighten: Tighten the nuts to 9 N.m (80 lb in).
Install the turbocharger exhaust pipe. Refer to Turbocharger Exhaust Pipe Replacement (6.6L (LB7) Engine) or Turbocharger Exhaust Pipe Replacement (6.6L (LLY) Engine) .