HVAC Mode/Temperature Door Actuators May Fail on Buick Park Avenue

The mode and temperature door actuators may fail causing improper air flow or temperature output from the heating and AC (HVAC) system.

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Average mileage: 125,809 (38,000–287,000)
13 model years affected: 1992, 1993, 1995, 1996, more1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
110 people reported this problem
59 people shared problem details
Blows cold on passenger side, warm on drivers side
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Air no longer works at dashboard, only windshield and maybe floor.
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COOL AIR ONT THE DRIVERS SIDE HOT AIR ON THE PASSENGER SIDE IS THIS CAUSED BY A SEND UNIT OR A ACTUATOR DOOR STUCK
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when heat on..cold air out of the passenger side
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vents blow warm air for driver side, but not for passenger side; cold air when it should be warm from front defrost vents and from floor vents.
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Air conditioner works but air coming from vents is erratic.
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no hot or cold air from middle vents
cold air on drivers side when heat is turned on
cold air coming from drivers side vent while heat is on
Cold air blows through driver side when the heater is on
1998 Buick Park Avenue 6 cylinders 3.8 The A/C doesn't work properly. Cool air blows on driver's side and hot air blows on passenger's side. There is also like a clumping sound like opening and closing a vent that occurs when the car is turned on. Checked the freon and it is fine.
Temperature blend actuator on drivers side failed, and replaced. Easy DIY fix for a handy guy. Now the actuator that selects between windshield, mid, and floor is out. Frosty windshield sidelined the Buick for the day... Now I need to hunt down that actuator and fix that one too. - Grandma Car - 15years and only 35K miles - expect a few age-related problems...
A/C doesn't blow from the front of the dash/Vents. Only to floor vents and to windshield vents or both but not forward towards passengers via dash vents.
Ac blows from defroster and floor but not in the middle...
no air flow to the dash vents
only passenger side blows hot air
AC does not turn on hot air blows out and will not change from vent to defrost or floor
when I cut my AC on I get cold ice cold air on the driver side nothing but hot unbearable heat on the passenger side
Air Flow from AC/Heater seems to not be consistent. Temperature settings fluctuate between too warm and too cool.
Driver blend door moves,no clicks or noise.but air is warmer than pass.could b.door still be the prob.
Related Items:
...sult in incorrect air delivery or temperature. If this occurs, fault code(s) stored in the HVAC control module should be available to assist with diagnoses.
Is it located under the hood on the firewall or inside the car??
how can i locate the door mode actuator?its blowing hot on the passengers side and cold on the...
the air flow only comes out defrost vent at the windshield or the floor

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