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2005 Impala no heat drivers side only

09-17-2007, 04:27 PM
My Impala started acting up a week ago, the heat will come on, on the passanger side but not the drivers side. My A/C works great, and air does come out of the drivers side when I have the heat on it just blows out cold like the vent is on but my control for the drivers side is in the cold position instead of the hot. I am not sure what can cause this, any ideas?

09-18-2007, 08:09 AM
Do you have duel controls ? If not check the ducts. The driver side might be disconnected.

09-19-2007, 03:35 PM
I had the same problem with my 2005 Impala. On the dual climate control there are separate servo motors (GM Calls them actuators) which open up flaps in the air duct to the heater core.

I paid $37.52 for the part at the dealer and it took me about an hour to install.

To access the servo motor, you need to remove the plastic plate below the steering wheel. It is only clipped-in with two clips (no tools needed). You can see the servo motor about 8" above the floor blower vent. It is black and about 3" long and 2" high. Held in with two screws and has a wire harness attached to it (2 wires). Take out the screws, then unclip the wire harness. When you clip the wires into the new one, you can test it easily. If you slide the temp conrol to hot, it spins one way, the to cold it spins the other way. (my failed one only spun one way, and always forced the duct flap to the heat closed).

The hardest part of the job was reaching from below in a tight spot, and getting the screws started after I installed the new one. For the top screw, I laid some duct tape in my socket, and fit the screw head in tight, so I could use the socket as a handle to get the screw staretd.

09-19-2007, 03:42 PM
Thank you so much. My dad is going to get the part for me and put it in, he has a 2000 Buick Century and he was trying to us his books on his car for mine and when we saw they were too different I came on here to see if anyone else had the same problem; I am confident your suggestion will fix the problem, I will let you know how it turns out.

09-19-2007, 03:44 PM
Do you have duel controls ? If not check the ducts. The driver side might be disconnected.
Yes I have dual controls, another member informed me of what happened on his vehicle and I will try to replace that part. Thank you for helping me though.

11-05-2007, 03:30 PM
I'm also having the same problem, although the backlight on my left-side temperature control is not lit. Was that the case in yours as well?


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