GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2005 🢒 XLR 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 5L40-E/5L50-E 🢒 Control Valve Body Accumulator Assembly Replacement

Removal Procedure
  1. Remove the transmission fluid pan and filter. Refer to Automatic Transmission Fluid and Filter Replacement .

    2. Object Number: 822499 Size: SH
  2. Disconnect the internal electrical wiring harness connectors from all internal electrical components (1-8).

    3. Object Number: 812785 Size: SH
  3. Remove ONLY bolts (1, 3) from the valve body assembly. Do NOT remove bolts (2) called out in the graphic.

    4. Object Number: 812731 Size: SH
  4. Remove the bolts (3) securing the control valve body accumulator assembly (1) and manual shaft detent assembly (2) to the transmission case.
  5. Remove the manual shaft detent assembly (2) and control valve body accumulator assembly (1) from the transmission.

    6. Object Number: 812730 Size: SH
  6. Remove the fluid passage sleeves only if replacement of the sleeves is necessary.

Installation Procedure

    Object Number: 812730 Size: SH
  1. Install NEW fluid passage sleeves if previously removed.

    2. Object Number: 812731 Size: SH
  2. Install the control valve body accumulator assembly (1) and manual shaft detent spring (2) to the transmission.
  3. Install the manual shaft detent spring bolts (3) and hand tighten.

    4. Object Number: 795843 Size: SH
  4. Confirm that the manual shift shaft detent lever locating pin (2) is properly engaged with the manual valve link (1).
  5. Confirm that the detent spring roller (4) is properly engaged with the manual shift shaft switch (3).

    6. Object Number: 812785 Size: SH
  6. Install the control valve body accumulator assembly to the transmission case bolts (1-3) and hand tighten.

    7. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 802251 Size: SH

    Important: If the bolts are tightened at random, valve bores may become distorted and inhibit proper valve operation.

  7. Tighten the control valve body assembly bolts in sequence.

    8. Tighten
    Tighten the bolts to 11 N·m (97 lb in).


    Object Number: 822502 Size: SH
  8. Install a 0.8 mm spacer (2) between the manual shaft detent lever (1) and the manual shaft detent spring (3).
  9. Tighten the detent spring bolts.

    10. Tighten
    Tighten the bolts to 11 N·m (97 lb in).

  10. Remove the spacer (2).

    11. Object Number: 822499 Size: SH
  11. Connect the internal electrical wiring harness connectors to all internal electrical components (1-8).
  12. Install the transmission fluid pan and filter. Refer to Automatic Transmission Fluid and Filter Replacement .

    13. Important: It is recommended that transmission adaptive pressure (TAP) information be reset.

    Resetting the TAP values using a scan tool will erase all learned values in all cells. As a result, The engine control module (ECM), powertrain control module (PCM) or transmission control module (TCM) will need to relearn TAP values. Transmission performance may be affected as new TAP values are learned.

  13. Reset the TAP values. Refer to Transmission Adaptive Functions .