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Home >> Pontiac >> 2007 >> Grand Prix GXP >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine Mechanical - 3.8L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Lower Intake Manifold Replacement (L32) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  1. If removed, install the ECT sensor.

    Tighten:  Tighten the ECT sensor to 25 N.m (18 lb ft).

    2. Fig 1: Water Outlet Housing, Bolt & Stud
    GM406012Courtesy of GENERAL MOTORS CORP.
  2. If removed, install the thermostat, the gasket, and the water outlet housing.
  3. Install the water outlet housing bolt and the stud.

    Tighten:  Tighten the bolt and the stud to 27 N.m (20 lb ft).

    4. Fig 2: Intake Manifold Gaskets
    GM97725Courtesy of GENERAL MOTORS CORP.
  4. Install the intake manifold gaskets.
  5. Apply sealer to the ends of the intake seals. Refer to Sealers, Adhesives, and Lubricants  for the correct part number.
  6. Install the lower intake manifold seals.
    7. Fig 3: Lower Intake Manifold, Bolts & Seals
    GM97724Courtesy of GENERAL MOTORS CORP.
  7. Align the coolant bypass tube with the opening in the manifold. Install the lower intake manifold.
  8. Install the lower intake manifold bolts.

    Tighten:  Tighten the lower intake manifold bolts from the center to the outside in sequence to 15 N.m (11 lb ft).

  9. Connect the ECT sensor electrical connector.
    10. Fig 4: EGR Outlet Pipe & Lower Intake Manifold
    GM911030Courtesy of GENERAL MOTORS CORP.
  10. Install the EGR outlet pipe (1) to the lower intake manifold.
  11. Install the EGR outlet pipe bolt (2).

    Tighten:  Tighten the bolt to 29 N.m (21 lb ft).

    12. Fig 5: Radiator Inlet Hose
    GM405984Courtesy of GENERAL MOTORS CORP.
  12. Install the radiator inlet hose to the water outlet housing. Refer to Radiator Inlet Hose Replacement (RPO LS4) or Radiator Inlet Hose Replacement (RPOs L26, L32) in Engine Cooling.
  13. Install the supercharger. Refer to Supercharger Replacement .
  14. Fill the cooling system. Refer to Draining and Filling Cooling System (L26, L32 GE 47716 Fill) or Draining and Filling Cooling System (L26, L32 Static Fill) or Draining and Filling Cooling System (LS4 GE 47716 Fill) or Draining and Filling Cooling System (LS4 Static Fill) in Engine Cooling.
  15. Inspect for fluid or vacuum leaks.
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