LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1619 (Engine Mechanical - 4.8L, 5.3L & 6.0L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Oil Pan Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
  • The alignment of the structural oil pan is critical. The rear bolt hole locations of the oil pan provide mounting points for the transmission bellhousing. To ensure the rigidity of the powertrain and correct transmission alignment, it is important that the rear of the block and the rear of the oil pan must NEVER protrude beyond the engine block and transmission bellhousing plane.
  • Do not reuse the oil pan gasket.
  • It is not necessary to rivet the NEW gasket to the oil pan.
  1. Apply a 5 mm (0.20 in) bead of sealant GM P/N 12378190, or equivalent 20 mm (0.80 in) long to the engine block. Apply the sealant directly onto the tabs of the front cover gasket that protrudes into the oil pan surface.
    Fig 1: Applying Sealant Onto Tabs Of Front Cover Gasket
    G02106758Courtesy of GENERAL MOTORS CORP.
  2. Apply a 5 mm (0.20 in) bead of sealant GM P/N 12378190, or equivalent 20 mm (0.8 in) long to the engine block. Apply the sealant directly onto the tabs of the rear cover gasket that protrudes into the oil pan surface.
    Fig 2: Applying Sealant Onto Tabs Of Rear Cover Gasket
    G02106759Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Be sure to align the oil gallery passages in the oil pan and engine block properly with the oil pan gasket.
  3. Pre-assemble the oil pan gasket to the pan.
    • Install the gasket onto the pan.
    • Install the oil pan bolts to the pan and through the gasket.
  4. Install the oil pan, gasket and bolts to the engine block.
  5. Tighten the oil pan bolts until snug. Do not overtighten.
    Fig 3: Installing Oil Pan, Gasket & Bolts
    G02106760Courtesy of GENERAL MOTORS CORP.
  6. Install the two bottom bellhousing bolts until snug, if equipped with a manual transmission.
    Fig 4: Installing Bottom Bellhousing Bolts
    G02106761Courtesy of GENERAL MOTORS CORP.
  7. Install the transmission converter cover bolts until snug, if equipped with the 4L80-E automatic transmission.
    Fig 5: Installing Transmission Converter Cover Bolts
    G02106762Courtesy of GENERAL MOTORS CORP.
  8. Install the transmission bolt and stud on the right side until snug, If equipped with the 4L60-E automatic transmission.
    Fig 6: Installing Transmission Bolt & Stud On Right Side
    G02106763Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to FASTENER NOTICE .
  9. Install the bottom bolt on the left side until snug.

    Tighten 

    1. 9.1. Tighten the oil pan and oil pan-to-oil pan front cover bolts to 25 N.m (18 lb ft).
    2. 9.2. Tighten the oil pan-to-rear cover bolts to 12 N.m (106 lb in).
    3. 9.3. Tighten the bellhousing, converter cover, and transmission bolts/stud to 50 N.m (37 lb ft).
    Fig 7: Installing Bottom Bolt On Left Side
    G02106764Courtesy of GENERAL MOTORS CORP.
  10. Install the positive battery cable clip and bolt to the oil pan.

    Tighten 

    Tighten the bolt to 9 N.m (80 lb in).

  11. Install the engine oil cooler lines to the positive battery cable clip.
    Fig 8: Installing Positive Battery Cable Clip & Bolt
    G02106765Courtesy of GENERAL MOTORS CORP.
  12. Install the following to the positive battery cable clip:
    • Engine wiring harness clip
    • Positive battery cable clip
    Fig 9: Installing Positive Battery Cable Clip & Engine Wiring Harness Clip
    G02106766Courtesy of GENERAL MOTORS CORP.
  13. Slide the channel pin in to the oil pan tab.
  14. Install the battery cable channel bolt.

    Tighten 

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

    Fig 10: Installing Battery Cable Channel Bolt
    G02106767Courtesy of GENERAL MOTORS CORP.
  15. Connect the oil level sensor electrical connector (6).
    Fig 11: Connect Oil Level Sensor Electrical Connector
    G02106768Courtesy of GENERAL MOTORS CORP.
  16. Install the transmission cover and bolt.

    Tighten 

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

    Fig 12: Installing Transmission Cover & Bolt
    G02106769Courtesy of GENERAL MOTORS CORP.
  17. Install the crossbar.
  18. Install the crossbar bolts.

    Tighten 

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

    Fig 13: Installing Crossbar & Bolts
    G02106770Courtesy of GENERAL MOTORS CORP.
  19. If equipped, install the oil pan skid plate.
  20. Install the oil pan skid plate bolts.

    Tighten 

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

    Fig 14: Installing Oil Pan Skid Plate & Bolts
    G02106771Courtesy of GENERAL MOTORS CORP.
  21. Install the transmission cover bolts

    Tighten 

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

    Fig 15: Installing Transmission Cover Bolts
    G02106772Courtesy of GENERAL MOTORS CORP.
  22. Raise the front drive axle into position.
  23. If equipped with 4WD, install the differential carrier upper mounting bolt and nut until snug. Do not tighten at this time.
    Fig 16: Installing Differential Carrier Upper Mounting Bolt & Nut
    G02106773Courtesy of GENERAL MOTORS CORP.
  24. If equipped with 4WD, instal the differential carrier lower mounting bolt and nut.

    Tighten 

    Tighten the bolts to 100 N.m (75 lb ft).

    Fig 17: Installing Differential Carrier Lower Mounting Bolt & Nut
    G02106774Courtesy of GENERAL MOTORS CORP.
  25. If equipped with 4WD, install the inner axle housing washers and nuts to the bracket.

    Tighten 

    Tighten the nuts to 100 N.m (75 lb ft).

  26. Remove the jack from the front drive axle.
  27. Install new engine oil and a new oil filter. Refer to Engine Oil and Oil Filter Replacement .
    Fig 18: Installing Inner Axle Housing Washers & Nuts
    G02106775Courtesy of GENERAL MOTORS CORP.
scientia non olet · About LEMON Manuals