- #36 of 109
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Re: 2007 Yukon Denali a/c problem [dreabt]
by rayb6
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Dec 08, 2007 (7:55 am)
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Replying to: dreabt (Nov 30, 2007 6:40 am)
Picked up vehicle last Sunday with 300 miles on it. When I restart my 2007 Yukon xl (Not Denali), my heat only comes on after I change the heat settings a few times. The temp gauge is up to near 210 but no heat. I have to adjust the flow direction. Went to the dealer yesterday and they said it was normal. Any suggestions would be helpful.
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- #37 of 109
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Re: Reprogramming Air Conditioning [jlflemmons]
by fireballs
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Dec 14, 2007 (8:56 pm)
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Replying to: jlflemmons (Aug 01, 2007 8:16 pm)
jlflemmons-
Thanks for the great tip! I recently replace my battery on my '04. Well, when heater is turn on the passenger side blows Hot air but, the driver side blows Cold air; "very cold".
I called the dealer and they didn't have a clue but wanted to keep my GMC for a few days.
I think your reprogramming will reset the system. . .thanks --Los Angeles, CA
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- #38 of 109
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2003 A/C problem
by eodman
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Dec 18, 2007 (5:45 am)
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Replying to: fireballs (Dec 14, 2007 8:56 pm)
Mine is a little different than everyone elses. when it's cold out.. say in the 20-30s it takes forever for the defrost to start blowing... either hot or cold...
in the summer sometimes it takes mins. before the a/c will blow....
no problems with air temp.. just the time lag for it to blow any air at all...
anyone have a clue?
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- #39 of 109
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Re: 2003 A/C problem [eodman]
by lpfeifer
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Dec 18, 2007 (7:34 am)
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Replying to: eodman (Dec 18, 2007 5:45 am)
This sounds kind of like my problem with the 01. Due you have the auto climate control? Does the rear blower work, even if the front one does not? Let me know this, and if this is the case, I might be able to help you.
Lyle Pfeifer
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- #40 of 109
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Re: 2003 A/C problem [lpfeifer]
by eodman
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Dec 18, 2007 (2:21 pm)
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Replying to: lpfeifer (Dec 18, 2007 7:34 am)
yes.... rear works as designed and the front is the only one that gives me problems. it has auto and i'm tried the fuse reset... maybe i'll try it again just longer.
ok this morning it was cool 45degrees and it took awhile to come on. now it's 65 and it will turn on real quick... if it's 100 the a/c will take awhile to blow
but rear air is normal in all aspects
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- #41 of 109
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Re: 2003 A/C problem [eodman]
by eodman
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Dec 20, 2007 (7:50 am)
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Replying to: eodman (Dec 18, 2007 2:21 pm)
 come on now?????? nobody has any ideas?????
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- #42 of 109
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Re: 2003 A/C problem [eodman]
by tidester HOST
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Dec 20, 2007 (10:15 am)
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Replying to: eodman (Dec 20, 2007 7:50 am)
Maybe the fan is "gummed up?"
tidester, host
SUVs and Smart Shopper
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- #43 of 109
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Re: 2003 A/C problem [tidester]
by eodman
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Dec 20, 2007 (10:39 am)
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Replying to: tidester (Dec 20, 2007 10:15 am)
not sure... it works and works well.. but, it has to finally decide to turn on and once it has been going for awhile it will turn on instantly.
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- #44 of 109
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Re: 2003 A/C problem [eodman]
by lpfeifer
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Dec 20, 2007 (12:40 pm)
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Replying to: eodman (Dec 20, 2007 7:50 am)
Do you have dual air/heat?
Lyle
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- #45 of 109
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Re: 2003 A/C problem [eodman]
by lpfeifer
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Dec 20, 2007 (12:51 pm)
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Replying to: eodman (Dec 20, 2007 10:39 am)
There is a plug that goes into the AC/heater fan. You have to remove a cover that is held on with 3 or 4 screws and you can see the fan motor. This cover goes from the passenger side all the way to the middle of the tunnel. The plug is on the right or inside of the fan and kind of hard to get to and remove. The fan is located on the passenger side of the car, the plug, if like mine is shorting out. It is connected to a box or block, similar to the resistor block on a non auto climate control unit. Yours runs about $130.00. I replaced mine as the plug melted due to being installed wrong. Look inside the plug for bunt contacts. One of mine, the main power point was pushed all the way down and did not spring back up to allow good contact, causing a high resistance and heat build up causing the plug to melt. If you pound on the cover about 1 foot over from the passenger side wall with your hand, your fan should start. But remember, this plug is getting hot. This is at least what happened to mine. Worse case, if you need a new plug, you have to buy the harness just to get the plug, I think they said about $165.00.
Hope this helps. Let me know, as I had this problem with a 2001.
Lyle Pfeifer
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