Thanks for your response.
Despite the fact that I never liked how it operated from the time it was
new, it worked okay. Lately, though, the MODE selector stopped having any
effect of directing air flow.
Based upon another poster's suggestion, I disconnected the battery and
allowed the A/C controller to re-set, which seemed to help for awhile
although it didn't restore complete functionality.
Recently it seems to have become totally stuck; i.e., air flow *sounds* like
it's rushing out the defroster vents regardless of MODE setting, and cold
air blasts the driver's feet but the passenger gets too warm.
I think this probably relates to a particular TSB. Dealer suggests running a
diagnostic, and the parts cost alone to replace the controller (if needed)
is $465. If I'm going to sink more $ into the car, I'd prefer to have a
workable, reliable system when I'm done.
Actually, my original brochure says the automatic system wasn't even
available for the GX trim line when we bought our Intrigue GL, so I was
assuming the manual system is available on later models. (In fact, it was
installed in a 2003 Buick Regal we test-drove last year.)
Even if I could find one, though, I'm wondering about how hard it is to
retrofit it. Any thoughts?
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