- #8 of 109
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Re: Where is the ac water drain? [ccryder]
by edfresh2
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Oct 18, 2006 (2:27 pm)
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Replying to: ccryder (Aug 26, 2006 12:32 pm)
I just got a 2001 Yukon XL with the same pblm. Did you ever get this fixed? I still have the warrenty so I WILL eventually get it fixed. Thx - Ed F.
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- #9 of 109
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Re: Where is the ac water drain? [edfresh2]
by ccryder
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Oct 19, 2006 (2:54 am)
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Replying to: edfresh2 (Oct 18, 2006 2:27 pm)
It is in the back on the right. Behind the right rear wheel. THe one for the front is inside the right front wheel. Been a while now but I finally carried mine to a mechanic. THey had to take the cover off inside the car; to the right of the rear seats to get to it to unstop it. My front one was ok.
My problem was that I didn't know there were 2; one for the rear and one for the front. I thought everything worked from the front but there 2 complete systems, only one compressor tho.
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- #10 of 109
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97 Yukon - AC & heat sporadically failing, for years...
by lousyac
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Aug 03, 2007 (9:30 am)
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Replying to: ccryder (Oct 19, 2006 2:54 am)
I've got a 1997 GMC Yukon (bought in 2001). Anyways, it's always had this problem: the fan starts blowing, I can feel the faintest leak of hot or cold air out of the vents, but no air comes out of the vents. This is an intermittent problem. Sometimes it works fine, sometimes it doesn't. No telling when it will fail or when it will work.
Of course, over multiple trips to the mechanic it has worked every single time for them.
This is driving me nuts! At this point, if there's a part that's a likely culprit I'll just buy it, hand it to the mechanic and have him replace the !#$ thing. Does anybody have any ideas what could be failing that would keep that nice cool (or hot) air from getting all the way into the cabin ?
Thanks in advance,
Pat
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- #14 of 109
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Air Conditioning malfunction
by joesdenali
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May 30, 2007 (7:16 pm)
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Replying to: lousyac (Aug 03, 2007 9:30 am)
I have a 2004 Denali that blows heat and A/C through the defrosters only. The dealer has "adjusted" some sensor three times based on the TSB recommendations. What should I do??
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- #15 of 109
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Re: Air Conditioning malfunction [joesdenali]
by beu
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Jun 10, 2007 (1:10 pm)
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Replying to: joesdenali (May 30, 2007 7:16 pm)
Probably a vacuum leak to the vacuum controls of the HVAC if it has vacuum controls instead of electrical. The defroster is the default if there is no vacuum. Does it idle rough?
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- #16 of 109
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Re: Air Conditioning malfunction [beu]
by duke5259
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Jul 08, 2007 (7:46 am)
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Replying to: beu (Jun 10, 2007 1:10 pm)
I have this same problem and I do have a bit of a rough idle. Any ideas where to start troubleshooting the vacuum system?
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- #17 of 109
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Reprogramming Air Conditioning
by cheapengineer
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Jul 17, 2007 (8:02 pm)
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Replying to: lousyac (Aug 03, 2007 9:30 am)
The A/C in my 2004 Yukon XL wasn't getting cold any more. I figured it was a basic freon leak. Dealer said the control module needed to be re-programmed. Charged me 2.5 hours labor at 95 $/hr. They could not explain what went wrong or why it needed to be reprogrammed, they just said that is what needed to be done.
Did I get duped?
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