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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 721 (Engine Mechanical - 8.1L (On-Vehicle)) >> Repair Instructions >> Oil Pan Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2002 GMC Yukon XL, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: The oil pan must be installed within 5 minutes of the sealer being applied or the sealer will begin to cure, causing an inadequate seal.
    Fig 1: Front & Rear Crankshaft Bearing Cap Sealant Areas
    GM677833Courtesy of GENERAL MOTORS CORP.
  1. Apply sealant GM U.S. P/N 12346286, Canada P/N 10953472, or equivalent to the sides of the front (1) and rear (2) crankshaft bearing caps, on both the left and right sides (4 locations total).
    2. Fig 2: Oil Pan & Gasket
    GM635654Courtesy of GENERAL MOTORS CORP.
  2. Install a NEW oil pan gasket (2) into the oil pan groove, if required.
  3. Install the oil pan (1).
    4. Fig 3: View Of Oil Pan Bolt Tightening Sequence
    GM677869Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  4. Install the oil pan bolts.

    Tighten: 

    1. Tighten the oil pan bolts in sequence a first pass to 10 N.m (89 lb in).
    2. Tighten the oil pan bolts in sequence a final pass to 25 N.m (18 lb ft).

    5. Fig 4: Battery Cable Channel & Bolt
    GM750904Courtesy of GENERAL MOTORS CORP.
  5. Position the battery cable channel into place.
  6. Install the battery cable channel bolt.

    Tighten:  Tighten the battery cable channel bolt to 9 N.m (80 lb in).

    7. Fig 5: View Of Oil Level Sensor
    GM750962Courtesy of GENERAL MOTORS CORP.
  7. Install the oil level sensor to the oil pan.

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

    8. Fig 6: Oil Level Sensor Electrical Connector
    GM750961Courtesy of GENERAL MOTORS CORP.
  8. Install the engine harness clip to the oil pan.
  9. Connect the oil level sensor electrical connector (2).
  10. Install the oil level indicator. Refer to Oil Level Indicator and Tube Replacement .
  11. Fill the engine with oil. Refer to Engine Oil and Oil Filter Replacement .
    12. Fig 7: View Of Crossmember Bolts & Bar (4WD Only)
    GM487521Courtesy of GENERAL MOTORS CORP.
  12. If equipped with 4WD, install the crossbar.
  13. Install the crossbar bolts.

    Tighten:  Tighten the crossbar bolts to 100 N.m (74 lb ft).

    14. Fig 8: View Of Crossbar Bolts & Bar (2WD)
    GM328107Courtesy of GENERAL MOTORS CORP.
  14. If equipped with 2WD, install the crossbar.
  15. Install the crossbar bolts.

    Tighten:  Tighten the crossbar bolts to 100 N.m (74 lb ft).

    16. Fig 9: Identifying Oil Pan Skid Plate
    GM309158Courtesy of GENERAL MOTORS CORP.
  16. Install the oil pan skid plate.
  17. Install the oil pan skid plate bolts.

    Tighten:  Tighten the oil pan skid plate bolts to 20 N.m (15 lb ft).

  18. Install the starter motor. Refer to STARTER in Engine Electrical.
  19. Install the front differential, if equipped with 4WD. Refer to DIFFERENTIAL CASE & RING GEAR .
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