GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2001 🢒 Yukon - 2WD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L60-E 🢒 Control Valve Body and Wiring Harness Removal

    Object Number: 181573 Size: SH
  1. Remove all electrical connectors (1-6) from the electrical components.

    2. Object Number: 405022 Size: SH
  2. Remove the TCC PWM retainer clip (395).
  3. Remove the TCC PWM solenoid (396).

    4. Object Number: 181575 Size: SH
  4. Remove the TCC solenoid bolts (68).

    5. Object Number: 181576 Size: SH
  5. Remove the TCC solenoid and wiring harness (66). Turn the wiring harness over so that it hangs over the side of the transmission.

    6. Object Number: 5447 Size: SH
  6. Remove the transmission fluid pressure (TFP) manual valve position switch assembly bolts (62, 70).
  7. Remove the TFP manual valve position switch (69).

    8. Object Number: 13263 Size: SH
  8. Remove the manual detent spring bolt (64).
  9. Remove the manual detent spring assembly (63).

    10. Object Number: 283771 Size: SH
  10. Remove all valve body bolts (62).
  11. Remove the fluid level indicator stop bracket (93).

    12. Object Number: 5449 Size: SH
  12. Lift the valve body carefully so that the checkballs remain on the spacer plate in the correct location. While lifting the valve body, disconnect the manual valve link from the manual valve.

    13. Object Number: 13132 Size: SH

    Notice: Do not use a magnet in order to remove the control valve body ball check valves. This may magnetize the control valve body ball check valves, causing metal particles to stick to them.

  13. Remove the seven valve body checkballs (2-6, 8, 12).

    14. Object Number: 154833 Size: SH
  14. Remove the accumulator cover bolts (58, 59).
  15. Remove the 1-2 accumulator cover and pin assembly (57).
  16. Disassemble the 1-2 accumulator assembly (54, 56, 57, 104).

    17. Object Number: 5452 Size: SH
  17. Remove the spacer plate support bolts (77).
  18. Remove the spacer plate support (53).

    19. Object Number: 5453 Size: SH
  19. Remove the valve body gasket (52), the valve body spacer plate (48) and the case gasket (47).

    20. Discard gaskets. Do not reuse.


    Object Number: 5454 Size: SH
  20. Remove the 3-4 accumulator spring (model dependent) and the 3-4 accumulator piston.

    21. Object Number: 5455 Size: SH

    Notice: Do not use a magnet in order to remove the control valve body ball check valves. This may magnetize the control valve body ball check valves, causing metal particles to stick to them.

  21. Remove the case checkball (#1).