GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 HUMMER 🢒 2009 🢒 H2 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Coolant Heater Cord Replacement

Removal Procedure

    Object Number: 661139 Size: SH
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Disconnect the coolant heater electrical connector (2).

    3. Object Number: 661277 Size: SH
  3. Remove the coolant heater cord retainer and bolts.
  4. Remove the coolant heater cord.

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 661277 Size: SH

    Caution: The heater cord must not touch the engine, hot pipes, manifold, or any moving parts. Route the cord to the left front of the engine compartment securing with tie straps as necessary to prevent damage.

  1. Install the coolant heater cord.
  2. Install the coolant heater cord bolts and retainer and tighten the bolts to 8 N·m (71 lb in).

    3. Object Number: 661139 Size: SH
  3. Connect the coolant heater electrical connector (2).
  4. Lower the vehicle.