Intake Manifold Cleaning and Inspection

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Clean the intake manifold crossover.

Fig 1: View Of Intake Manifold Crossover Inspection Areas

Courtesy of GENERAL MOTORS CORP.

Clean the intake manifold mating surfaces.
Clean the intake manifolds.
Clean the intake manifold mating surfaces.
Inspect the intake manifolds for cracks.
Inspect the intake manifold mating surfaces for damage.
Replace the intake manifolds if any damage is found.

Fig 2: View Of Intake Manifold Inspection Areas

Courtesy of GENERAL MOTORS CORP.