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GMC Yukon XL and Yukon XL Denali

4070 messages,  Last post on Nov 24, 2009 at 8:08 AM

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What is this discussion about? GMC Yukon XL, SUV

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#3900 of 4070 surging Idle by bobby3031 Sep 24, 2005 (2:48 pm)
Can anyone help, have a 2001 GMC Yukon XL and I love it. Has 108k and runs great. However, when trying to engage A/C system at start up engine begins to surge, A/C blows warm air, and on occasion causes the engine to stall. Watching the RPMs it seems to surge falling below 500 RPMs if I press the accelerator to 1000 RPM everything returns to normal. A/C starts blowing cold again. Let off the gas and problem persists until the engine is warmed up then everything runs fine. I have taken the Yukon in for service was advised the Yukon was due for spark plug and wires and the A/C compressor needed replaced. Had the work done, Problem(s) still exist!! If anything the problem is worse. Still happening only when the vehicle is at idle, and only at warm up. Replies to this message: raulio (Oct 06, 2005 1:47 pm) erinsquared (Oct 15, 2005 4:01 pm)
#3901 of 4070 yuck by ahightower Oct 05, 2005 (6:27 am)
Y'all seen the photos of the new Yukon? Man, I thought the Tahoe looked bland. The Yukon looks like a big Envoy, which is to say weak and BLAH.
#3902 of 4070 Re: surging Idle [bobby3031] by raulio Oct 06, 2005 (1:47 pm)
Replying to: bobby3031 (Sep 24, 2005 2:48 pm) Have you had any luck fixing this yet? I also have an '01 Yukon XL, with 83k and have started to have serious problems with the surging. It has always surged and recently a friend got a yukon that also surged ('01). His dealer told him his manifold needed to be cleaned--it helped. Mine has made my battery die, now the battery gauge drops, and it sounds like it is going to turn off, whenever the RPMs get below 1000. Does this sound familiar to you? Replies to this message: erinsquared (Oct 15, 2005 4:01 pm)
#3903 of 4070 Re: surging Idle [raulio] by erinsquared Oct 15, 2005 (4:01 pm)
Replying to: raulio (Oct 06, 2005 1:47 pm) This is common on Vortec engine designs. I had this on my Denali and address this on the following Edmunds message http://townhall-talk.edmunds.com/direct/view/.ee94fd9/2950
#3904 of 4070 Re: Need to swap out the second row captain seats [tsandoval] by gkhan Oct 20, 2005 (5:27 pm)
Replying to: tsandoval (Jun 30, 2005 11:39 am) Do you still have the captain's chairs? I have a bench for a 2004 Denali.
#3905 of 4070 need to find out what this is????? by scrappintay Nov 03, 2005 (8:30 am)
There is a circle with holes in it,kind of like a mini speaker almost, in the headliner right next to the drivers head above drivers door. it has started making a humming noise like a little fan or motor running and when you turn off the car it makes a winding down whirring noise . does anyone know what this is?? thought maybe it had something to do with onstar but seriously doubt it. Replies to this message: ahightower (Nov 03, 2005 11:00 am) circutmann (Nov 07, 2005 9:40 am)
#3906 of 4070 Re: need to find out what this is????? [scrappintay] by ahightower Nov 03, 2005 (11:00 am)
Replying to: scrappintay (Nov 03, 2005 8:30 am) This was addressed in a prior post (see #3862 and associated posts). You may also try searching and asking in the Suburban and Tahoe boards, there are some guys in here that are very knowledgeable and answer almost every question within a day or two.   The OnStar speaker is on the headliner to the right of the driver, by the overhead console. The thing on the left by your head is some kind of sensor for the automatic climate control. There is a small fan in there, I didn't really understand why, or what they did to resolve the noise. Good luck, let us know what you do about it.
#3907 of 4070 Re: need to find out what this is????? [scrappintay] by circutmann Nov 07, 2005 (9:40 am)
Replying to: scrappintay (Nov 03, 2005 8:30 am) As indicated by "ahightower" I have answered many questions on this "air temperature sensor" in a variety of messages on the "Chevy Tahoe (SUV)" board in messages #'s between 5563 - 5608. Rather than repeat everything again, check those out first. If you still have any questions, just ask on either board, as I read both. You are correct that it is a small fan & is part of the automatic climate control system.   My truck is a 01 YXL. If your truck is still within 3 yrs / 36K, you should be covered by warranty.   Good Luck, Dave
#3908 of 4070 Denali Woodgrain Kits by yuke Nov 10, 2005 (10:27 am)
I've found a place that has great prices. Molded or flat pieces. wooddash.com   Nice people and great prices.
#3909 of 4070 Back up camera by yuke Nov 10, 2005 (11:13 am)
This is the one I prefer ( link below ). Vizualogic makes a monitor ( color choices to match your trim ) that will affix to the inside windshield trim just to the right of the rear view mirror that looks great or there are many options for the monitor. I like this camera because the height will give you a better view and it's out of the way of the rear bumper stuff.   Camera

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