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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 148 (Engine Mechanical - 4.8L, 5.3L & 6.0L) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Intake Manifold Removal

Intake Manifold Removal

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2003 GMC Savana Special, 2003 GMC Savana Camper Special, 2003 GMC Savana, 2003 Chevrolet RV Cutaway, and 2003 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

Important:  The intake manifold, throttle body, fuel injection rail, and fuel injectors may be removed as an assembly. If not servicing the individual components, remove the manifold as a complete assembly.

DO NOT use the intake manifold-to-cylinder head gaskets again.

  1. Remove the positive crankcase ventilation (PCV) hose (1) and valve (2).
    Fig 1: Removing PCV Hose & Valve
    G02078706Courtesy of GENERAL MOTORS CORP.
  2. Remove the manifold absolute pressure (MAP) sensor (1), if required.
  3. Remove the engine coolant air bleed clamp and hose from the throttle body.
    Fig 2: Removing MAP Sensor
    G02078707Courtesy of GENERAL MOTORS CORP.
  4. Remove the accelerator control cable bracket (2) and bolts (1), if required.
    Fig 3: Removing Accelerator Control Cable Bracket & Bolts
    G02078708Courtesy of GENERAL MOTORS CORP.
  5. Remove the evaporative emission (EVAP) solenoid (3), bolt (2), and isolator (1).
    Fig 4: Removing EVAP Solenoid, Bolt & Isolator
    G02078709Courtesy of GENERAL MOTORS CORP.
  6. Remove the intake manifold bolts.
  7. Remove the intake manifold with gaskets.
    Fig 5: Removing Intake Manifold
    G02078710Courtesy of GENERAL MOTORS CORP.
  8. Separate the intake manifold-to-cylinder head gaskets (1) from the manifold.
  9. Discard the intake manifold gaskets.
    Fig 6: Separating Intake Manifold-To-Cylinder Head Gaskets
    G02078711Courtesy of GENERAL MOTORS CORP.