Installation Procedure

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Right Exhaust Pipe

Courtesy of GENERAL MOTORS CORP.

Position the exhaust pipe to the turbocharger and the exhaust manifold.

Fig 2: Exhaust Pipe Gasket Tabs

Courtesy of GENERAL MOTORS CORP.

IMPORTANT: Position the exhaust pipe gaskets with the tabs shown. Failure to do so will cause improper alignment of the gaskets and result in exhaust leaks.

Position the exhaust pipe with a NEW gasket (1) to the exhaust manifold. Align the tabs (2) on the gasket to face downward.
Loosely install the exhaust manifold bolts.

Fig 3: Turbocharger Gasket Tabs

Courtesy of GENERAL MOTORS CORP.

IMPORTANT: Position the exhaust pipe gaskets with the tabs shown. Failure to do so will cause improper alignment of the gaskets and result in exhaust leaks.

Install a NEW gasket (1) to the turbocharger with the tab (2) facing outward

Fig 4: View Of Exhaust Manifold Bolt Tightening Sequence

Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to Fastener Notice .

Tighten the exhaust pipe bolts in the sequence shown.
Tighten: Tighten the bolts to 53 N.m (39 lb ft).
Install the upper exhaust gas reculation cooling pipe. Refer to EXHAUST GAS RECIRCULATION COOLING PIPE REPLACEMENT - UPPER (LMM) .
Install the turbocharger exhaust pipe. Refer to Turbocharger Exhaust Pipe Replacement (6.6L) .