Heater problem on drivers side with dual climate control

Tiny
SLEWIS518
  • MEMBER
  • 1998 BUICK PARK AVENUE
  • 280,382 MILES
Drivers side blows cold air, no hot air. Passengers side seams to be alright. Looking for the actuator that controls the heat on the drivers side.
Monday, November 5th, 2018 AT 8:24 PM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 POSTS
Good morning.

It is under the left side of the dash. Remove the cover under the dash by your knees and it is above the fuel pedal.

Roy

1. Remove the left side sound insulator. Refer to Instrument Panel Insulator Panel Replacement See: Dashboard / Instrument Panel > Procedures.
2. Remove the aspirator muffler.
3. Disconnect the electrical connector from the driver air mix actuator.
4. Remove the driver air mix actuator retaining screws (1).
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Tuesday, November 6th, 2018 AT 3:19 AM
Tiny
SLEWIS518
  • MEMBER
  • 2 POSTS
Thanks. That is the one that but was not sure. However that was the one I changed with no change. Is there any special setup or installation procedures to fallow, or any special testing on the original actuator and the new part?
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Wednesday, November 7th, 2018 AT 10:59 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 POSTS
When you command heat and cold, can you hear or feel the motor work?

If you have a scan tool that can access the AC system, you can work it with the scan tool to see if it works and also see if it is sending voltage to the actuator.

Roy
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Thursday, November 8th, 2018 AT 2:34 AM

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