GM Service Manual Online
For 1990-2009 cars only

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 LZ9

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 from the engine coolant heater.

  3. Object Number: 1584091  Size: SH
  4. If equipped with the manual transmission, remove the coolant heater cord clips from the transmission range selector lever cable bracket.

  5. Object Number: 1584094  Size: SH
  6. If equipped with the automatic transmission, remove the coolant heater cord clips from the transmission range selector lever cable bracket.
  7. Lower the vehicle.

  8. Object Number: 1584096  Size: SH
  9. Remove the coolant heater cord from between the shock tower and side rail.

Installation Procedure


    Object Number: 1584096  Size: SH
  1. Install the coolant heater cord between the shock tower and side rail.
  2. Raise and support the vehicle.

  3. Object Number: 1584094  Size: SH
  4. If equipped with the automatic transmission, install the coolant heater cord clips to the transmission range selector lever cable bracket.

  5. Object Number: 1584091  Size: SH
  6. If equipped with the manual transmission, Install the coolant heater cord clips to the transmission range selector lever cable bracket.

  7. Object Number: 1584090  Size: SH
  8. Connect the engine coolant heater cord to the engine coolant heater.
  9. Lower the vehicle.

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 from the engine coolant heater.

  3. Object Number: 1588315  Size: SH
  4. Remove the coolant heater cord clip from the automatic transmission range selector lever cable bracket.
  5. Lower the vehicle.

  6. Object Number: 1584096  Size: SH
  7. Remove the coolant heater cord from between the shock tower and side rail.

Installation Procedure


    Object Number: 1584096  Size: SH
  1. Install the coolant heater cord between the shock tower and side rail.
  2. Raise and support the vehicle.

  3. Object Number: 1588315  Size: SH
  4. Install the coolant heater cord clip to the automatic transmission range selector lever cable bracket.

  5. Object Number: 1584090  Size: SH
  6. Connect the engine coolant heater cord to the engine coolant heater.
  7. Lower the vehicle.