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 999 (Automatic Transmission - ALLISON (Introduction, Service & Replacement)) >> Repair Instructions >> Oil Pan Replacement >> Installation Procedure

Installation 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. Remove all gasket material from the transmission case. Remove any scratches from the transmission case that would cause a splitline leak.
  2. Place a new seal (1) on the tube of the transmission internal oil filter (2), if the filter was removed. Be sure the seal locates against the shoulder on the internal oil filter tube.
    Fig 1: Transmission Internal Oil Filter Assembly
    GM658981Courtesy of GENERAL MOTORS CORP.
  3. Push the filter (2) and seal (1) into the seal bore in the transmission case. Position the transmission internal oil filter properly.
  4. Install 2 headless guide bolts (9), M8 x 1.25, into opposite corners of the oil pan mounting face on the transmission case.
  5. Place a gasket (3) on the oil pan and align the bolt holes.
  6. Slide the gasket (3) and oil pan (5) over the guide bolts and hold them in place while installing 2 bolts (8) to hold the parts in place.
  7. NOTE: Refer to Fastener Notice in Cautions and Notices.
  8. Remove the guide bolts.
  9. Install the 10 remaining oil pan bolts (8).

    Tighten:  Tighten the bolts to 27 N.m (20 lb ft).

  10. NOTE: Refer to Component Fastener Tightening Notice in Cautions and Notices.
  11. Install the drain plug (7) and drain plug seal (6).

    Tighten:  Tighten the drain plug to 35 N.m (26 lb ft).

  12. Lower the vehicle.
  13. NOTE: Use only clean and approved transmission fluid.
  14. Refill the transmission with DEXRON®III Automatic Transmission Fluid. Refer to Fluid Capacity Specifications .
  15. IMPORTANT: Remember fluid remains in the external circuits and transmission cavities after draining the transmission.
  16. Check the transmission fluid level. Refer to Transmission Fluid Checking Procedure .