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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1020 (Engine Mechanical - 6.6L (LLY)) >> Repair Instructions >> On-Vehicle Repair Instructions >> Oil Pan Replacement - Lower >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Place a suitable container under the engine in order to drain the oil.
  3. Remove the oil drain plug.
  4. Drain the engine oil.
    5. Fig 1: View Of Oil Drain Plug
    GM660296Courtesy of GENERAL MOTORS CORP.
  5. Remove the oil pan skid plate bolts and plate, if equipped.
    6. Fig 2: Identifying Oil Pan Skid Plate
    GM309158Courtesy of GENERAL MOTORS CORP.
  6. If equipped with a 2-wheel drive (2WD) vehicle, remove the crossmember bolts and crossmember.
    7. Fig 3: View Of Crossbar Bolts & Bar (2WD)
    GM328107Courtesy of GENERAL MOTORS CORP.
  7. If equipped with a 4-wheel drive (4WD) vehicle, remove the crossmember bolts and crossmember.
    8. Fig 4: View Of Crossmember Bolts & Bar (4WD Only)
    GM487521Courtesy of GENERAL MOTORS CORP.
  8. Disconnect the oil level sensor electrical connector.
    9. Fig 5: View Of Oil Level Sensor Electrical Connector
    GM1334843Courtesy of GENERAL MOTORS CORP.
  9. Remove the lower oil pan bolts/nuts.
    IMPORTANT: DO NOT damage the sealing surfaces when separating the lower oil pan from the upper oil pan.
  10. Separate the lower oil pan from the upper oil pan using J 37228  .
  11. Remove the lower oil pan.
    12. Fig 6: View Of Lower Oil Pan & Bolts/Nuts
    GM1334845Courtesy of GENERAL MOTORS CORP.
  12. If necessary, clean and inspect the lower oil pan. Refer to Oil Pan Cleaning and Inspection - Lower .
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