Intake Manifold Cleaning and Inspection - Lower (L26)

WARNING: This page is about a different car, the 2004 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.

Clean the lower intake manifold mating surfaces.

Fig 1: Cleaning Lower Intake Manifold (L26)

Courtesy of GENERAL MOTORS CORP.

Clean the lower intake manifold.
Inspect the threaded holes for damage.
Inspect the lower intake manifold for damage or nicks in the mating surfaces.
Replace or repair the lower intake manifold as necessary.