FixVault

Removal Procedure

WARNING:

Before conducting any repair to this high voltage cooling system, it is necessary to determine/verify whether no high-voltage system faults exist. If high-voltage faults exist, follow published DTC diagnostics/repair procedures prior to performing any cooling system repairs. Failure to correct High Voltage Faults before working on the high voltage cooling system could result in personal injury or death.

WARNING:

Do not use a service jack in locations other than those specified to lift this vehicle. Lifting the vehicle with a jack in those other locations could cause the vehicle to slip off the jack and roll; this could cause injury or death.

  1. Turn the Vehicle Power Off, remove all keyless entry transmitters from the vehicle and secure in a place outside the vehicle.
  2. Drain the cooling system. Drive Motor Generator Power Inverter Module Cooling System Draining and Filling 
  3. Raise and support the vehicle. Lifting and Jacking the Vehicle
  4. Remove Front Wheelhouse Liner Front Wheelhouse Liner Replacement (Left Side)Front Wheelhouse Liner Replacement (Right Side)
  5. Fig 1: Coolant Hose And Retainer
    GM4091136Courtesy of GENERAL MOTORS COMPANY
  6. Disconnect Electrical Connector(4)
  7. Unclip Retainer(3)
  8. Loosen Clamp(1)BO-38185  pliers
  9. Remove Coolant Hose(2)
  10. Fig 2: Generator Control Module Coolant Pump Bracket And Nuts
    GM4091137Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Mind the position of the pump and the bracket.

  11. Remove the 2 generator control module coolant pump bracket nuts (2).
  12. Remove the front half generator control module coolant pump bracket (1).
  13. Fig 3: Clamp And Coolant Hose
    GM4091139Courtesy of GENERAL MOTORS COMPANY
  14. Loosen Clamp(2)BO-38185  pliers
  15. Remove Coolant Hose(1)
  16. Remove the generator control module coolant pump (3).
  17. Remove the rear half of the generator control module coolant pump bracket (4).