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10-02-2009
Yesterday when i got off work and began my trek home i put the heater on due to it being 41 degrees outside. The whole ride home of 15 mins it blew cold on the left and hot on the right with the heater set at 90*. What gives??? is there some vacume door under the dash not working or is the HVAC Headunit in need of replacement ?
10-02-2009
let me know when you find out. my car dose the same thing. lol
10-02-2009
Well i've heard that there are two actuators behind the HVAC controls a left and a right and the can go bad. I can confirm this on AllDatadiy.com as well but i have no idea how to get to them and fix them. I also do not know the Part #'s.
10-06-2009
Anyone else have some insight on my issue ? I have no idea how to fix this and it's getting colder by the day.
10-06-2009
More coats nancy!! Lmao
10-07-2009
Well i guess but the weird thing is it blows hot on the right and cold on the left. I need to get this fixed ASAP.
10-31-2009
mine does same thing too. and when the a/c is on, it stopped blowing cold a few months ago...san diego has strange weather, can need a/c on in mid day, and heat on in later evening. anyone? is it my driver side thingy busted? i thought the a/c was low, tried topping it off, but its full...
11-02-2009
I currently have the same problem on my Impala, i.e. heat on passenger side only. Google: "blend door"
11-03-2009
ok let me check that.
11-27-2009
well i think thats the problem, but my haynes doesnt have it in there about how to get this thing out and check it...guess i will figure it out on my own like always. and with the help of youse guys for sure!
11-27-2009
i believe the blend doors are in the heater box under the dash. you might be better off goin to a junkyard and grabbin a used heater box. maybe a vacuum line on the climate control is broken? never seen a climate control gtp so idk if its all electric of not.
12-04-2009
rynoman03: my car is doing the same thing. i have been doing research on this problem for the last 6 months and still have not found a solution. its driving me INSANE!!!!! i live in MI and it just started to snow like an hour ago. im pi**ed. there has to be SOMEONE out there that knows the solution so that way we dont have to rip into our dashboards blind-ly. come on people, HELP US OUT!!!! lol
12-04-2009
If the system is electronic climate controlled, whatever side is blowing cold, that electronic actuator is bad and must be replaced. I just had to fix my pass side, it was blowing cold. The acts are not cheap and I got a used one for $40. Somertimes you can get lucky and only the gear is missing teeth, and I suppose you could move the gear 180 deg so the motor has teeth to grab. In my case the act was dead completely.
The driver's side elec act is harder to get too if that one failed.
The system uses two electronic acuators and three vacuum actuators. The vacuum acts control the recirc, mode, defrsot doors. The elec acts control temps.
See this post on how to replace either.
http://www.grandprixforums.net/f73/b...ent-21941.html
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