Park Avenue

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

Problem Description and Possible Solution

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

Problem Data
RepairPal Verified
Average mileage: 127,083 (38,000–287,000)
14 model years affected: 1992, 1993, 1994, 1995, more1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
172 people reported this problem
Viewing 1 - 20 of 76 comments
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.
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.
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.
My air conditioner was just charged, it blows cold on the passenger side, but warm on the drivers side. The AC compressor is working.