GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2002 🢒 TrailBlazer - 2WD 🢒 Engine 🢒 Engine Mechanical - 4.2L 🢒 Intake Manifold Cleaning and Inspection

Intake Manifold Cleaning and Inspection for Chevrolet TrailBlazer - 2WD 2002


    Object Number: 637711 Size: SH
  1. Clean the intake manifold gasket mating surface.
  2. Inspect the threads on the retaining bolts.
  3. Inspect the intake manifold for cracks.
  4. Clean the internal ports of all debris.
  5. Replace the intake manifold if necessary.