GM Service Manual Online
For 1990-2009 cars only

Heater Coolant Pump Replacement HP5


Object Number: 2159917  Size: MF

Callout

Component Name

Preliminary Procedures

  1. Drain the coolant. Refer to Cooling System Draining and Filling
  2. Remove the heater outlet hoses connected to the heater coolant pump. Refer to Heater Outlet Hose Replacement
  3. Disconnect the heater coolant pump electrical connector.

1

Heater Coolant Pump Bolt

Caution: Refer to Fastener Caution in the Preface section.

Tighten
10 N·m (88 lb in)

2

Heater Coolant Pump

Heater Coolant Pump Replacement LAT


Object Number: 1871408  Size: MF

Callout

Component Name

Preliminary Procedures

  1. Drain the cooling system. Refer to Cooling System Draining and Filling.
  2. Remove the inlet and outlet hose clamp from the auxiliary heater pump.
  3. Remove the inlet and outlet hoses from the auxiliary heater pump.

1

Auxiliary Heater Coolant Pump Screw

Caution: Refer to Fastener Caution in the Preface section.

Tighten
9 N·m (80 lb in)

2

Auxiliary Heater Coolant Pump

Procedure

Disconnect the electrical connection.