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-   -   03 Bonneville a/c new member question (https://pontiacforum.com/pontiac/showthread.php?t=36811)

MCFetty May 18th, 2017 01:46 PM

03 Bonneville a/c new member question
I have an 03 Bonneville with single zone a/c. Everything I seem to find is dual zone. My problem is, when I turn on my a/c I only get heat out of the dash ducts. If I turn it on the floor, it is cold and I get cool air out of the dash ducts when I turn on the vent. I can also get cold air out of the defrost vents. I cannot seem to find a single zone a/c diagram or diagnostics. Can anyone give me a direction to look in? Thanks.

melsg5 May 18th, 2017 02:22 PM

you have a problem with an air door actuator motor. Either the motor or the connection is at fault. This link is for an earlier model but the basic principles are the same. The second link is for the parts



MCFetty May 30th, 2017 12:35 PM

Thanks for the links. Any idea where I can get a pic of where this is located?

melsg5 May 30th, 2017 03:43 PM

all the components are either under or in the dash

MCFetty June 13th, 2017 02:10 PM

Thanks tons, that is what I have been looking for. I really appreciate the help.

MCFetty June 21st, 2017 10:36 AM

Thanks for the help. I was really dreading climbing under the dash, so I did some more checking. It is the compressor. It will run, but not build any pressure. Thanks again for the help.

melsg5 June 21st, 2017 04:33 PM

have you had the system checked with gauges to determine if you have a leak?

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