Oil Pump - Rear Drive Unit (Remove and Replace)

Correction code 4030460240304602
Parent topic: 4030 - Rear Gearbox and Halfshafts

Remove

  1. Disconnect 12V power. See 12V Power (Disconnect and Connect).
  2. Drain the gearbox fluid from the rear drive unit. See Gearbox Fluid - Rear Drive Unit (Drain and Refill).
  3. Remove the bolts that attach the oil pump to the rear drive unit, and then remove the pump from the rear drive unit.
  4. Use a pry tool to lever against the rear drive unit to loosen the oil pump.
  5. Remove the oil pump from the rear drive unit assembly.
1Disconnect 12V power. See 12V Power (Disconnect and Connect).
2Drain the gearbox fluid from the rear drive unit. See Gearbox Fluid - Rear Drive Unit (Drain and Refill).
3Remove the bolts that attach the oil pump to the rear drive unit, and then remove the pump from the rear drive unit.
4Use a pry tool to lever against the rear drive unit to loosen the oil pump.
5Remove the oil pump from the rear drive unit assembly.

Install

  1. Lightly coat the oil pump O-rings with clean ATF-9 fluid.
  2. Install the oil pump into the rear drive unit, and then install the bolts that attach the oil pump to the rear drive unit.
    Torque 5 Nm + 20 degrees
  3. Refill the gearbox fluid for the rear drive unit fluid. See Gearbox Fluid - Rear Drive Unit (Drain and Refill).
  4. Connect 12V power. See 12V Power (Disconnect and Connect).
  5. Use Toolbox to update the vehicle firmware.
1Lightly coat the oil pump O-rings with clean ATF-9 fluid.
2Install the oil pump into the rear drive unit, and then install the bolts that attach the oil pump to the rear drive unit.
Torque 5 Nm + 20 degrees
3Refill the gearbox fluid for the rear drive unit fluid. See Gearbox Fluid - Rear Drive Unit (Drain and Refill).
4Connect 12V power. See 12V Power (Disconnect and Connect).
5Use Toolbox to update the vehicle firmware.