Air Induction Systems: Turbocharger: Inspection

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2002 GMC Savana Special, 2002 GMC Savana Camper Special, 2002 GMC Savana, 2002 GMC C3500 HD, and 2002 Chevrolet RV Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

Clean the all mounting bolts for the turbocharger. Clean and inspect the sealing surface of the exhaust manifold. Clean the intake hoses for the turbocharger. Inspect the turbocharger sealing surfaces and intake hoses for damage. Replace the parts that have damaged sealing surfaces.

Before installing the turbocharger, check the intake and exhaust systems leading to and from the turbocharger in order to ensure that there is no debris. Even small debris can cause severe wheel damage if drawn in during high speed operation. Make sure the turbocharger and exhaust manifold flanges are clean and free of any foreign material. Use high temperature Anti-Seize Compound (GM 1052771) on all threaded fasteners connected to the turbocharger. Inspect the oil feed and return passages in the engine block and the turbocharger. Make sure these passages are clean and open. Always replace the "O" ring between the turbocharger and the engine block.