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.
Average mileage: 127,083 (38,000–287,000)
14 model years affected: 1992
, more1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
149 people reported this problem
Blows cold on passenger side, warm on drivers side
Air no longer works at dashboard, only windshield and maybe floor.
COOL AIR ONT THE DRIVERS SIDE HOT AIR ON THE PASSENGER SIDE IS THIS CAUSED BY A SEND UNIT OR A ACTUATOR DOOR STUCK
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...
cold air coming from drivers side vent while heat is on
when heat on..cold air out of the passenger side
A/C blows cold from passenger side vents, warm from driver's side.
no hot or cold air from middle vents
Air conditioner works but air coming from vents is erratic.
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.
cold air on drivers side when heat is turned on
When I turn the heater on it blows cold on passenger side and warm on the drivers side
no air flow to the dash vents
Ac blows from defroster and floor but not in the middle...
Cold air blows through driver side when the heater is on
only passenger side blows hot air
My air conditioner was just charged, it blows cold on the passenger side, but warm on the drivers side. The AC compressor is working.
when heater on cold air on drivers side