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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> Engine Mechanical >> Engine Mechanical - 4.3L >> Repair Instructions >> On-Vehicle Repair Instructions >> Oil Pan Replacement >> Installation Procedure

Installation Procedure

NOTE: Any time the transmission and the engine oil pan are off of the engine at the same time, install the transmission before the oil pan. This is to allow for the proper oil pan alignment. Failure to achieve the correct oil pan alignment can result in transmission failure.
  1. Install the oil pan to the engine. Refer to OIL PAN INSTALLATION  .
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  2. Install the transmission to oil pan bolts and nuts.
    Fig 1: Installing Transmission To Oil Pan Bolts And Nuts
    G01643718Courtesy of GENERAL MOTORS CORP.

    Tighten 

    Tighten the bolts to 47 N.m (35 lb ft).

  3. Install the access plugs for the oil pan rear nuts.
    Fig 2: Installing Access Plugs For Oil Pan Rear Nuts
    G01643719Courtesy of GENERAL MOTORS CORP.
  4. Position the front differential carrier assembly.
  5. Install the carrier upper and lower mounting bolts and nuts (AWD only). Refer to DIFFERENTIAL CARRIER ASSEMBLY BUSHING REPLACEMENT in Front Drive Axle.
  6. Install the inner axle shaft housing support bracket to frame washers and nuts (AWD only). Refer to DIFFERENTIAL CARRIER ASSEMBLY BUSHING REPLACEMENT in Front Drive Axle.
  7. Install the transmission cover.
    Fig 3: Installing Transmission Cover
    G01643720Courtesy of GENERAL MOTORS CORP.

    Tighten 

    Tighten the bolts to 12 N.m (106 lb in).

  8. Install the starter motor. Refer to STARTER MOTOR REPLACEMENT in Battery.
  9. Install the bolt holding the bracket for the starter wiring harness and the transmission cooler pipes.
    Fig 4: Installing Bolt Holding Bracket For Starter Wiring Harness And Transmission Cooler Pipes
    G01643721Courtesy of GENERAL MOTORS CORP.

    Tighten 

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

  10. Install the CKP sensor wiring harness in the retainer.
  11. Install the oil filter adapter. Refer to OIL FILTER ADAPTER REPLACEMENT  .
  12. Install the oil cooler pipes bracket bolt.
    Fig 5: Installing Oil Cooler Pipes Bracket Bolt
    G01643722Courtesy of GENERAL MOTORS CORP.

    Tighten 

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

  13. Install the oil filter. Refer to ENGINE OIL AND OIL FILTER REPLACEMENT  .
  14. Install the oil pan drain plug.
    Fig 6: Installing Oil Pan Drain Plug
    G01643723Courtesy of GENERAL MOTORS CORP.

    Tighten 

    Tighten the oil pan drain plug to 25 N.m (18 lb ft).

  15. Lower the vehicle.
  16. Fill the crankcase with engine oil. Refer to ENGINE OIL AND OIL FILTER REPLACEMENT  .
  17. Connect the battery negative cable. Refer to BATTERY NEGATIVE CABLE DISCONNECT/CONNECT PROCEDURE in Battery.
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