GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 21368 Pump Body and Cover Alignment Band
    • J 36850 Assembly Lubricant

    Object Number: 31212  Size: SH
  1. Assemble the oil pump cover (206) and the oil pump body (203).

  2. Object Number: 31213  Size: SH

    Important: The round end on the vent passage splash shield (239) fits into the hole in the oil pump cover. The slotted hole in the vent passage splash shield fits under the bolt head.

  3. Install the vent passage splash shield (239).
  4. Install the oil pump cover bolts (220). Tighten the bolts with your fingers only.

  5. Object Number: 31217  Size: SH
  6. Install an oil pump to case bolt and seal assembly (3) into an oil pump bolt hole.
  7. Important: The outside diameter of the oil pump body and oil pump cover must be properly aligned and then the alignment band can be tightened. This ensures that the oil pump will fit into the transmission case opening and maintains maximum oil pump efficiency.

  8. Install the J 21368 onto the transmission oil pump assembly and tighten.
  9. Tighten the five oil pump cover bolts (220).
  10. Tighten
    Tighten the bolts to 24 N·m (18 lb ft).

    Refer to Fastener Notice .

  11. Remove the J 21368 and the oil pump to case bolt and seal assembly (3).

  12. Object Number: 31219  Size: SH

    Important: Coat the transmission oil pump seal (5) with J 36850 or equivalent. This will ease assembly and prevent damage to the seal.

  13. Install the transmission oil pump seal (5).

  14. Object Number: 31221  Size: SH

    Notice: Do not overexpand the oil seal rings. Damage to the rings may result.

  15. Install the new oil seal rings (219) onto the oil pump.
  16. Ensure that the oil seal rings (219) move freely in the grooves.
  17. Use J 36850 or equivalent in order to keep the oil seal rings in place.