1999 Pontiac Grand Prix "blend air door" Questions

...blend air door actuator for BOTH sides or just one?  The only things that can cause the symptoms you are descibing is a blend air door actuator that is not working or a broken blend air ...

air blend door actuator on start up blend door changes back and forth from setting to setting by its self until car is warmed up have replaced blower control modal This could be a computer problem or ...

...blend door is probably what is keeping the air from blowing across the heater core and picking up the heat. I hope your manual gives a description and procedure for it. The blend door actuator and ...

...blend door is not moving to redirect air flow. There is three things that could cause this, 1 the control switch is bad or 2 the blend door acturator is bad, and 3 linkage for the door has come ...

...air on passenger side when heat is on. the heat works fine on the drivers side Problem with the blend door actuator or wiring going to it (no separate fuse). Most of the time the actuator motor fails ...

...air. It probably is the blend door. thats what one of my three opinions said. So is there any way to tell for sure? Labor prices ****!!! Or is there any way I could fix it myself? Thanks!!! blend ...

the driver side heat doesn't work but passenger side does blower works, air blend door acuator works as well, there is also a door that controls where air flow goes

...Blend Doors have become detached or the motor drive failed. They open and close and direct the air to vents as well as cutting it off altogether and divert to heat or A/C. ...

...air replaced gaskets . heater core radiator This could be the blend door on the heater. It is stuck on the wrong position because it is not fully in the heating mode. I certainly hope that no one ...

...thermostat, doesnt seem to have made a difference If the heater hoses are hot, problem could be a blend door under the dash.  The blend doors direct air thru the heater core and the