1999 Regal LS driver's side blowing cold, passenger side blowing hot

Charles Hartman

New member
1
0
1
Buick Ownership
1999 Buick Regal LS
The driver's side blows cold air, and the passenger side blows hot, regardless of settings. There also seems to be no difference in air output regardless of settings.
Also can't seem to find where cabin air temperature sensors are located (or how many there are). I have replaced the outside air temperature sensor since it was giving an invalid reading.
Ideas?
 

g_874615

Did you check the refrigerant charge? Wfes mazda has a slow leak and acts that same way when it needs charged
 

richardnewton

Junior Member
130
31
28
Buick Ownership
Buick
Had same problem on 2001 Regal LS (no digital climate control, just manual vertical sliders on dash for temp control, one for passenger one for driver).

Pulled blend door actuator and inspected door. No issues. That is a popular solution.

On my Regal, refrigerant was low. Tried DIY can but that didn't work. Had garage do professional drain & recharge last year and has worked perfectly since.
 
Your email address will not be publicly visible. We will only use it to contact you to confirm your post.
Top