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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 596 (Engine Mechanical - 3.5L (Unit Repair)) >> Repair Instructions >> Intake Manifold Cleaning and Inspection >> Cleaning Procedure

Cleaning Procedure

WARNING: This page is about a different car, the 2002 Oldsmobile Aurora and 2001 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove any remaining gasket and/or gasket material from the following:
    • Throttle body
    • Throttle body adapter heater plate
    • Intake manifold
  2. Clean the following intake manifold areas in solvent.
    • Intake manifold gasket grooves
    • Intake manifold passages
    • Brake booster hose passage
    • EVAP solenoid passage
    • PCV vacuum hose passages
    • MAP sensor passage
    • Throttle body adapter heater plate
    WARNING: Wear safety glasses in order to avoid eye damage.
  3. Dry the intake manifold and throttle body adapter heater plate with compressed air.
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