GM Service Manual Online
For 1990-2009 cars only

Coolant Heater Cord Replacement LZ4

Removal Procedure


    Object Number: 1584090  Size: SH
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Disconnect the engine coolant heater cord (1) from the engine coolant heater.
  3. Lower the vehicle.

  4. Object Number: 1782678  Size: SH
  5. Remove the coolant heater cord clip from the transaxle bracket.

  6. Object Number: 1584096  Size: SH
  7. Remove the coolant heater cord from the shock tower and the battery tray.

Installation Procedure


    Object Number: 1584096  Size: SH
  1. Install the coolant heater cord between the shock tower and the battery tray.

  2. Object Number: 1782678  Size: SH
  3. Install the coolant heater cord clip to the transaxle bracket.

  4. Object Number: 1584090  Size: SH
  5. Raise and support the vehicle.
  6. Connect the engine coolant heater cord (1) to the engine coolant heater.
  7. Lower the vehicle.

Coolant Heater Cord Replacement LAT

Removal Procedure


    Object Number: 1892451  Size: SH
  1. Disconnect the engine coolant heater cord (1).
  2. Remove the heater cord retaining clip from the front fender.

Installation Procedure


    Object Number: 1892451  Size: SH
  1. Install the heater cord retaining clip to the front fender.
  2. Connect the engine coolant heater cord (1).

Coolant Heater Cord Replacement LE5

Removal Procedure


    Object Number: 1578338  Size: SH
  1. Disconnect the engine coolant heater cord.

  2. Object Number: 1578339  Size: SH
  3. Disconnect the clip from the air conditioning (A/C) line.
  4. Disconnect the clip from the front compartment inner side upper rail.
  5. Remove the heater cord.

Installation Procedure


    Object Number: 1578339  Size: SH
  1. Install the heater cord.
  2. Connect the clip to the front compartment inner side upper rail.
  3. Connect the clip to the A/C line.

  4. Object Number: 1578338  Size: SH
  5. Connect the engine coolant heater cord.

Coolant Heater Cord Replacement LY7

Removal Procedure

  1. Remove the surge tank fasteners and reposition the tank aside. Refer to Radiator Surge Tank Replacement.

  2. Object Number: 2007457  Size: SH
  3. Disconnect the engine coolant heater cord (1).

  4. Object Number: 2007460  Size: SH
  5. Disconnect the clip (1) from the transmission range selector lever cable bracket (2).

  6. Object Number: 2007466  Size: SH
  7. Remove the heater cord (1).

Installation Procedure


    Object Number: 2007466  Size: SH
  1. Install the heater cord (1).

  2. Object Number: 2007460  Size: SH
  3. Connect the clip (1) to the transmission range selector lever cable bracket (2).

  4. Object Number: 2007457  Size: SH
  5. Connect the engine coolant heater cord (1).
  6. Reposition the surge tank and install the fasteners. Refer to Radiator Surge Tank Replacement.