GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
2006
🢒
TopKick C-Series (Conventional) C6/C7/C8
🢒
Engine
🢒
Engine Exhaust
🢒 Exhaust Manifold Replacement
Exhaust Manifold Replacement 7.8L With CTF
Removal Procedure
Remove the front exhaust pipe. Refer to
Front Pipe Replacement
.
Remove the exhaust gas recirculation (EGR) pipe. Refer to
Exhaust Gas Recirculation Pipe Replacement
.
Remove the 2 heat shield bolts.
Remove the turbocharger. Refer to
Turbocharger Replacement
.
Remove the exhaust manifold nuts (1-12), washers, spacers and heat shield.
Remove the exhaust manifold with the gasket.
Installation Procedure
Install the exhaust manifold and gasket to the cylinder head.
Install the exhaust manifold nuts, washers, spacers and the heat shield.
Install the 2 heat shield bolts.
Install the EGR pipe. Refer to
Exhaust Gas Recirculation Pipe Replacement
.
Notice:
Refer to
Fastener Notice
in the Preface section.
Tighten the exhaust manifold nuts in the proper sequence.
Tighten
•
Tighten the nuts (7, 12) to 34 N·m (25 lb ft).
•
Tighten the nuts (1-6, 8-11) to 55 N·m (41 lb ft).
Install the turbocharger. Refer to
Turbocharger Replacement
.
Install the front exhaust pipe. Refer to
Front Pipe Replacement
.