1999 Buick Regal "heat cold" Questions

...heat works but passenger side blows cold air. Ambient temp. reading correct. Passenger display working ,moved all the way to warmest setting, still cold air. the motor for the passenger side blend ...

been broken for 2 years but heat still came out even when the fan control was off. Now no heat at all. I had a problem where the heater would run cold air and I got it solved by fixing the heater core

heat, when I turn on heater- all cold air flows out Defroster doesn't work, air seems to flow fine but it is very cold 99 buick regal sounds like you have a stuck blend door in the HVAC system. If its

i have a 98 buick regal gs.i have no heat i changed the thermosat and fliud levels are fine. still no heat. blows out cold air still??? Check your heater contrl valve if equipped.

...cold air, no heat Most likely u have a coolant system issue most common is a thermostat next may be heater core some smaller vehicles have a electrical part inside the passenger side that regulates ...

heat blows hot on passenger side and cold on the driver side. Same problem on my 98 Regal GS; remove glove box, locate the blend door actuator, (black odd shaped box with metal "ring"). Remove the box

...heat up the passinger side of the car.. an the driver side blows cold air.. Your air blend door is stuck shut.....The HVAC system has doors in the passage tunnels where the air blows through...The ...

...cold air is coming from the vents on the other side. What could be causing this & how can it be fixed? Someone suggested there is a flap that shuts off the heat & this flap might be stuck...?? I ...

...or cold, heat or ac thing doesnt work at all and NO heat will blow out please help Check your vacuum lines. Does any air blow out at all? Is it push button, or have a slide? Could also be a bad

...something smell into the vehicle. Mn is cold so we need heat. Unbearable. Sounds like you have a blown headgasket,check the coolant in the radiator and if you find oil in it you do need a