Intake Manifold Cleaning and Inspection
WARNING: This page is about a different car, the 2007 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
Courtesy of GENERAL MOTORS CORP.
- Clean the intake manifold mating surfaces.
- Inspect the intake manifold for damage.
- Inspect the intake manifold for cracks near bolt holes.
- Inspect the crankcase ventilation passages in the intake manifold face for blockage.