Digital Dual Climate Control Mode Problem

[brandonl2000]

As my luck would have it, just when I get some extra money something on the ding damn GP wants to break.
I got in the car today and my heat modes won't really change (face/face and floor/floor/defrost/etc). They change a little but not really.
This is the first day the modes have ever given me problems. Since I got it I have had problems with the Recirc not wanting to actually do it's thing. But I can live with that.

I looked around a bit on the forum and found some info. about vacuum hoses, HVAC hoses, and mode motors? I have a GT so some of the stuff I seen was regarding GTPs. I also read something about a vacuum house around the battery and then another one near the firewall somewhere? I also read that sometimes when going WOT or heavy accelerating some vacuum hose can come off? If that's the case, then that could very well be it because I take the interstate to work and when I get on the ramp I like to get up and GO so I guess it's possible.

I just need to know what to check out first or what my problem is or how to fix it.

The heat blows out fine but it seems like it's just blowing out everywhere at the moment. Face, floor, and defroster all have heat flowing out of them and I can't change it (I hate heat blowing in my face once it gets hot is why I really noticed it still coming out when I put it on floor)

Thanks for the help!

 

[grandprixtokey]

I have the same exact year and model. My digital dual climate control has the same exact symptoms as yours. At the moment I have the dash apart and have found that the vacuum control valve solenoid has dirt/sand in it when I move it myself. I am suspecting that it is bad so I'll be changing it out.

 

[brandonl2000]

you're referring to the actuator?

and mine actually cured itself for the most part. idk how. but it changes now. its still not a perfect air flow cut off from one mode to the next but it does its job i guess.