1998 Buick LeSabre Logo
Posted on Nov 03, 2010
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Temp light flashes when car start up. turn on heater and blows cold air on passenger side, and barely warm on driver side. No blowing air from defroster. Will work occasionally but usually it is this way.

1 Answer

Duane Wong

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  • Buick Master 6,826 Answers
  • Posted on Nov 03, 2010
Duane Wong
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Joined: Jun 20, 2010
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Air Door Actuators/Motors Removal & Installation Recirculation Actuator 1996 - 1999 1996 - 1999 HVAC Actuators temp light flashes when car start up.  turn on - gm-10-00-1840.gif

To Remove:

  1. Remove the left sound insulator panel.
  2. Disconnect the vacuum hose from the recirculation actuator.
  3. Remove the recirculation actuator from the valve.
To Install:
  1. Connect the recirculation actuator to the valve.
  2. Clip the recirculation actuator to the air inlet.
  3. Connect the vacuum hose to the recirculation actuator.
  4. Install the left sound insulator panel.
2000 - 2005 2000 - 2005 Recirculation Actuator

To Remove:
  1. Remove the instrument panel compartment.
  2. Remove the right sound insulator.
  3. Remove the dash integration module from the bracket.
  4. Remove the 2 dash integration module bracket fasteners and position the bracket to gain access to the recirculation actuator.
  5. Disconnect the electrical connector from the recirculation actuator.
  6. Remove the recirculation actuator.
To Install:
  1. Install the recirculation actuator and torque the fasteners to 12 in-lbs (1.4 Nm).
  2. Connect the electrical connector to the recirculation actuator.
  3. Install the dash integration module bracket and torque the fasteners to 12 in-lbs (1.4 Nm).
  4. Install the dash integration module into the bracket.
  5. Install the right sound insulator.
  6. Install the instrument panel compartment.
  7. Recalibrate the actuator.
Defroster Valve Actuator 1996 - 1999 1996 - 1999 HVAC Actuators gm-10-00-1840.gif

To Remove:
  1. Remove the air distributor assembly.
  2. Unclip the defroster valve actuator from the air inlet.
  3. Disconnect the defroster valve actuator from the valve.
To Install:
  1. Disconnect the defroster valve actuator from the valve.
  2. Clip the defroster valve actuator from the air inlet.
  3. Install the air distributor assembly.
Heater/Bi-Level Actuator 1996 - 1999 1996 - 1999 HVAC Actuatemp light flashes when car start up. turn on - gm-10-00-1840.gifttp://arrc.epnet.com/autoapp/BUICK_LeSa_96-05_F2/p5images/G/GM-10-00-1840L.gif">gm-10-00-1840.gif

To Remove:
  1. Remove the air distributor assembly.
  2. Remove the clip and the screws that fasten the 2 halves of the air distributor assembly and separate the air distributor assembly.
  3. Unclip and disconnect the heater/bi-level actuator from the valve.
To Install:
  1. Connect and clip the heater/bi-level actuator to the valve.
  2. Fasten the 2 halves of the air distributor assembly together and torque the fasteners to 13 in-lbs (1.5 Nm).
  3. Install the air distributor assembly.
Temperature Actuator temp light flashes when car start up. turn on - gm-10-00-1840.gif 1996 - 1999 HVAC Actuators gm-10-00-1840.gif

To Remove:
  1. Remove the instrument panel assembly.
  2. By snapping the rod out of the valve, remove the temperature valve link rod from the temperature valve.
  3. Disconnect the electrical connector from the temperature actuator.
  4. Remove the temperature actuator.
To Install:
  1. Install the temperature actuator and torque the fasteners to 12 in-lbs (1.4 Nm).
  2. Connect the electrical connector to the temperature actuator.
  3. Start the vehicle.
  4. Set the fan to position to high.
  5. Set the temperature to full hot.
  6. Allow a minimum of 45 seconds for the temperature valve actuator to move to the full hot position.
  7. Move the temperature valve to the full hot position.
  8. Snap the temperature valve link rod into the temperature valve.
  9. Install the instrument panel assembly. 2000 - 2005 Mode and Left Air Temperature Actuator gm-10-00-1560.gif

    To Remove:
    1. Remove the left side sound insulator panel.
    2. Remove the knee bolster.
    3. Remove the instrument panel cluster. (Automatic HVAC)
    4. Disconnect the electrical connector from the left air temperature actuator. (Automatic HVAC)
    5. Remove the left air temperature actuator. (Automatic HVAC)
    6. Disconnect the electrical connector from the mode actuator.
    7. Remove the mode actuator.
    To Install:
    1. Align the mode door levers with the cam slots.
    2. Install the mode actuator and torque the fasteners to 12 in-lbs (1.4 Nm).
    3. Connect the electrical connector to the mode actuator.
    4. Install the left air temperature actuator and torque the fasteners to 12 in-lbs (1.4 Nm). (Automatic HVAC)
    5. Connect the electrical connector to the left air temperature actuator. (Automatic HVAC)
    6. Install the instrument panel cluster. (Automatic HVAC)
    7. Install the knee bolster.
    8. Install the left side sound insulator panel.
    9. gm-10-00-1560.gif

      To Remove:
      1. Remove the left side sound insulator panel.
      2. Remove the knee bolster.
      3. Remove the instrument panel cluster.
      4. Disconnect the electrical connector from the left air temperature actuator.
      5. Remove the left air temperature actuator retaining screws.
      6. Remove the left air temperature actuator.
      To Install:
      1. Install the left air temperature actuator and torque the fasteners to 12 in-lbs (1.4 Nm).
      2. Connect the electrical connector to the left air temperature actuator.
      3. Install the instrument panel cluster.
      4. Install the knee bolster.
      5. Install the left side sound insulator panel.
      Air temperature Actuator (Manual), Right Air temperature Actuator (Automatic) 2000 - 2005 Right Air Temperature Actuator gm-10-00-1561.gif

      To Remove:
      1. Remove the instrument panel compartment.
      2. Disconnect the electrical connector from the air temperature actuator.
      3. Remove the right air temperature actuator.
      To Install:
      1. Install the air temperature actuator and torqtemp light flashes when car start up. turn on - prev.gifasteners to 12 in-lbs (1.4 Nm).
      2. Connect the electrical connector to the air temperatutemp light flashes when car start up. turn on - next.giftor.
      3. Install the instrument panel compartment.
      4. Recalibrate the actuators.
      prev.gif next.gif

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