Inspection Procedure
- Inspect the wastegate regulator mechanism (1) for functionality.
Courtesy of GENERAL MOTORS COMPANY
- Inspect the wastegate regulator mechanism's rod end to pin for loss of pre-load.
- Inspect the turbine blades for damage or foreign material.
- Inspect the turbocharger wastegate regulator vacuum hoses for damage.
- Inspect the exhaust manifold and the turbocharger for cracks or other damage.
- Inspect the exhaust manifold mating surface for flatness.
- Inspect the turbocharger oil feed and return pipes for damage or restriction. Do NOT attempt to clean or repair the pipes. Replace any pipe that has damage or a restriction.