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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 418 (Engine Mechanical - 4.2L 6-Cylinder (On-Vehicle)) >> Repair Instructions >> Oil Pan Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the A/C compressor bottom bolts (4) and loosen the top bolts (2, 3).
    2. Fig 1: Removing A/C Compressor Bottom Bolts And Loosening Top Bolts
    G01706339Courtesy of GENERAL MOTORS CORP.
  2. Remove the oil level indicator and tube. Refer to Oil Level Indicator and Tube Replacement .
  3. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  4. Remove left and right front tire and wheel assemblies. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  5. Remove the engine protection shield mounting bolts.
    6. Fig 2: Removing Engine Protection Shield Mounting Bolts
    G01706340Courtesy of GENERAL MOTORS CORP.
  6. Remove the engine protection shield.
  7. Remove the steering gear crossmember, front.

    Refer to Steering Gear Crossmember Replacement - Front in Frame and Underbody.

    8. Fig 3: Removing Front Steering Gear Crossmember
    G01706341Courtesy of GENERAL MOTORS CORP.
  8. Remove the left and right wheel drive shaft. Refer to FRONT DRIVE AXLE - 4WD article.
  9. Remove the front drive axle clutch fork assembly. Refer to Intermediate Shaft Bearing Assembly Replacement - Front Drive Axle (S4WD) or Intermediate Shaft Bearing Assembly Replacement - Front Drive Axle (A4WD) in Front Drive Axle.
  10. Disconnect the prop shaft from the front axle pinion yoke. Refer to PROPELLER SHAFT REPLACEMENT - FRONT in Propeller Shaft.
  11. Remove the oil pan drain plug and drain the oil.
  12. Unclip the transmission cooler lines from the engine block.
    13. Fig 4: Unclipping Transmission Cooler Lines From Engine Block
    G01706342Courtesy of GENERAL MOTORS CORP.
  13. Remove the front differential bolts and set aside the front differential.
  14. Remove 4 transmission bell housing bolts that are attached to the oil pan.
  15. Remove the remaining oil pan bolts.
  16. Place 2 oil pan bolts in the jack screws on the oil pan and tighten evenly to release the oil pan from the engine.
  17. Clean and inspect the oil pan. Refer to OIL PAN CLEANING AND INSPECTION in Engine Mechanical - 4.2L Unit Repair.
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