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Home >> Pontiac >> 2005 >> Grand Prix GXP >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine Mechanical - 3.8L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Oil Pan Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
    Fig 1: Oil Pump Pipe Screen Assembly & Oil Pan Gasket
    GM97769Courtesy of GENERAL MOTORS CORP.
  1. Install the oil pan gasket and the oil pump pipe screen assembly.
    2. NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Install the oil pump pipe screen bolts.

    Tighten:  Tighten the bolts to 15 N.m (11 lb ft).

    3. NOTE: Install the oil level sensor, located in the oil pan, after the oil pan is installed. The sensor may be damaged if the oil level sensor is installed first.
    Fig 2: Oil Pan & Bolt
    GM97771Courtesy of GENERAL MOTORS CORP.
  3. Identify the oil pan style.
    4. IMPORTANT: For steel oil pans, begin on step 4. For aluminum oil pans begin with step 7.
    Fig 3: Applying Sealer To Steel Windage Tray Gasket
    GM1341869Courtesy of GENERAL MOTORS CORP.
  4. For steel oil pans, apply a continuous bead 6.35 mm (0.25 in) thick of RTV sealer GM P/N 12378521 (Canadian P/N 88901148) to the topside of the new windage tray gasket. Apply the RTV sealant directly over the sealing bead.
  5. Install the new windage tray gasket onto the engine.
    6. Fig 4: Applying Sealer To Bottom Side Windage Tray Gasket
    GM741054Courtesy of GENERAL MOTORS CORP.
  6. Apply a continuous bead 6.35 mm (0.25 in) thick of RTV sealer GM P/N 12378521 (Canadian P/N 88901148) to the bottom side of the new windage tray gasket. Apply the RTV sealant directly over the sealing bead.
  7. For aluminum oil pans, apply a continuous bead 6.35 mm (0.25 in) thick of RTV sealer GM P/N 12378521 (Canadian P/N 88901148), ensuring that the sealer also completely fills the groove in the oil pan.
  8. To ensure proper sealing, apply additional sealer at the four points called out in the illustration (1).
    9. Fig 5: Oil Pan, Gasket & Bolts
    GM44775Courtesy of GENERAL MOTORS CORP.
  9. Install the oil pan and oil pan windage tray gasket (if applicable).
  10. Clean the oil pan bolts of all debris.
  11. Apply one drop of GM P/N 12345382 (Canadian P/N 10953489) to each bolt.
  12. Install the oil pan bolts.

    Tighten:  Tighten the oil pan bolts to 14 N.m (125 lb in).

    13. Fig 6: Oil Level Sensor
    GM97768Courtesy of GENERAL MOTORS CORP.
  13. Install the oil level sensor.

    Tighten:  Tighten the sensor to 20 N.m (15 lb ft).

  14. Install the torque converter covers. Refer to Torque Converter Cover Replacement in Automatic Transaxle - 4T65 E.
  15. Install the engine mount and the engine mount bracket. Refer to Engine Mount Bracket Replacement - Right .
    16. Fig 7: Right Exhaust Manifold & Catalytic Converter Pipe
    GM911163Courtesy of GENERAL MOTORS CORP.
  16. Install the catalytic converter (3) to the right exhaust manifold.
  17. Install the catalytic converter pipe stud nuts (2).

    Tighten:  Tighten the nuts to 32 N.m (24 lb ft).

  18. Install the oil level sensor wiring harness and the oil level sensor wiring harness bolt to the engine.

    Tighten:  Tighten the bolt to 10 N.m (89 lb in).

    19. Fig 8: View Of Engine Electrical Connectors (Left Side)
    GM911140Courtesy of GENERAL MOTORS CORP.
  19. Connect the oil level sensor electrical connector (10).
  20. Install the power steering oil cooler pipe brackets to the frame.
  21. Install the engine oil filter.
  22. Lower the vehicle.
  23. Remove the engine support fixture.
  24. Install the right and left engine mount struts. Refer to Engine Mount Strut Replacement - Right  and Engine Mount Strut Replacement - Left .
  25. Fill the crankcase with engine oil. Refer to Engine Oil and Oil Filter Replacement .
  26. Install the air cleaner intake duct. Refer to Air Cleaner Intake Duct Replacement in Engine Controls - 3.8L.
  27. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement (L26)  or Fuel Injector Sight Shield Replacement (L32) .
  28. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (RPOs L26/L32) in Engine Electrical.
  29. Inspect for leaks.
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