GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2003 🢒 CTS 🢒 Engine 🢒 Engine Mechanical - 2.6L and 3.2L 🢒 Intake Plenum Manifold Cleaning and Inspection

Intake Plenum Manifold Cleaning and Inspection for Cadillac CTS 2003

  1. Clean the intake plenum in solvent, removing all sludge and varnish.
  2. Clean the intake plenum sealing surfaces.
  3. Inspect for the following conditions:
    4. • Chipped or cracked sealing flanges
    • Stripped or damaged thread holes
  4. Replace the intake plenum as necessary.