GM Service Manual Online
For 1990-2009 cars only

Auxiliary Water Pump Replacement 4.6L (LH2) with RPOs V03/V92

Special Tools

J 38185 Hose Clamp Pliers

Removal Procedure

  1. Drain the coolant. Refer to Cooling System Draining and Filling.

  2. Object Number: 1288671  Size: SH
  3. Using the J 38185 slide the hose clamp down on the hose (3).
  4. Disconnect the hose from the auxiliary water pump.
  5. Using the J 38185 slide the hose clamp back on the hose (1).
  6. Disconnect the hose from the auxiliary water pump.
  7. Disconnect the auxiliary water pump electrical connector.

  8. Object Number: 1288667  Size: SH
  9. Remove the auxiliary water pump nuts.
  10. Remove the auxiliary water pump.

Installation Procedure


    Object Number: 1288667  Size: SH
  1. Install the auxiliary water pump.
  2. Caution: Refer to Fastener Caution in the Preface section.

  3. Install the auxiliary water pump nuts and tighten to 9 N·m (80 lb in).

  4. Object Number: 1288671  Size: SH
  5. Connect the auxiliary water pump electrical connector.
  6. Connect the hose (3) to the auxiliary water pump.
  7. Using the J 38185 slide the hose clamp back into the original position on the hose.
  8. Connect the hose (1) to the auxiliary water pump.
  9. Using the J 38185 slide the hose clamp back to the original position on the hose.
  10. Fill the coolant. Refer to Cooling System Draining and Filling.

Auxiliary Water Pump Replacement LLT


Object Number: 2099022  Size: MF

Callout

Component Name

Preliminary Procedures

  1. Drain the coolant. Refer to Refer to Cooling System Draining and Filling
  2. Disengage auxiliary water pump inlet hose from auxiliary water pump. Refer to Auxiliary Water Pump Inlet Hose Replacement
  3. Disengage auxiliary water pump outlet hose from auxiliary water pump. Refer to Auxiliary Water Pump Outlet Hose Replacement
  4. Disconnect the auxiliary water pump electrical connector.
  5. Remove the upper fan shroud bolts.
  6. Push fan shroud rearward of vehicle.
  7. Press the auxiliary water pump push retainers and pull auxiliary water pump rearward of vehicle.

1

Auxiliary Water Pump