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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 163 (Engine Mechanical - 3.6L (LGX LF4) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Oil Pan Replacement (LF4) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Assemble the oil pan as necessary. Refer to Oil Pan Assemble (LF4) .
    2. Fig 1: Oil Pan Guides
    GM2762499Courtesy of GENERAL MOTORS COMPANY
  2. Install the 8 mm (0.315 in) guides (1) from the EN-46109  set into the center oil pan rail bolt hole on each side of the engine block.
    3. Fig 2: Identifying Sealant Application Locations On Block Pan Rail & Crankshaft Rear Oil Seal Housing
    GM1306200Courtesy of GENERAL MOTORS COMPANY
  3. Apply a 3 mm (0.118 in) bead (1) of RTV sealant on the block pan rail and the crankshaft rear oil seal housing. Refer to Adhesives, Fluids, Lubricants, and Sealers (LF4) for recommended sealant.
    4. Fig 3: Oil Pan
    GM2762488Courtesy of GENERAL MOTORS COMPANY
  4. Position the oil pan (1) onto the block.
    5. Fig 4: Oil Pan Bolts
    GM2762485Courtesy of GENERAL MOTORS COMPANY
  5. Loosely install the oil pan bolts (1 and 2).
    6. Fig 5: Oil Pan Guides
    GM2762520Courtesy of GENERAL MOTORS COMPANY
  6. Remove the EN-46109  set 8 mm (0.315 in) guides (1) from the engine block then install the remaining bolts.
    7. Fig 6: Identifying Oil Pan Bolt Tightening Sequence
    GM1829133Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

  7. Tighten the oil pan bolts in sequence.
    1. The 8 mm bolts (1-11) to 25 N.m (18 lb ft).
    2. The 6 mm bolts (12, 13) to 10 N.m (89 lb in).
    8. Fig 7: Oil Pan To Transmission Bolts
    GM3648279Courtesy of GENERAL MOTORS COMPANY
  8. Hand start the oil pan to transmission bolts (1) and tighten to 75 N.m (55 lb ft).
  9. Install the catalytic converter brace bracket. Refer to Catalytic Converter Brace Bracket Replacement (LF4)
  10. Install the engine mount brackets. Refer to Engine Mount Bracket Replacement - Left Side (LF4) , and Engine Mount Bracket Replacement - Right Side (LF4) .
    11. Fig 8: Electrical Wiring Harness Retainers
    GM3648277Courtesy of GENERAL MOTORS COMPANY
  11. Reposition the wiring harness and install the electrical wiring harness retainers (1) to secure the harness to the engine oil pan.
  12. Install the engine oil cooler and adapter assembly. Refer to Engine Oil Cooler Adapter Replacement (LF4) .
    13. Fig 9: Transmission Cooler Lines
    GM3648309Courtesy of GENERAL MOTORS COMPANY
  13. Reposition the transmission cooler lines (2) then install the bolt (1) into the transmission cooler line retainer. Tighten to 25 N.m (18 lb ft).
    14. Fig 10: Engine Oil Filter Adapter Lower Bolt
    GM3648301Courtesy of GENERAL MOTORS COMPANY
  14. Install the oil filter adapter lower bolt (1) and tighten to 25 N.m (18 lb ft).
  15. Install the drivetrain front cradle. Refer to Drivetrain and Front Suspension Cradle Replacement (LF4) .
  16. Install the oil level indicator tube. Refer to Oil Level Indicator Tube Replacement (LF4) .
  17. Position and attach the engine oil level switch harness retainer to the oil pan.
  18. Connect in the engine oil level switch.
  19. Install the engine front cover. Refer to Engine Front Cover Replacement (LF4) .
  20. Fill the engine oil to the proper level with NEW engine oil. Adhesives, Fluids, Lubricants, and Sealers (LF4)
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