a/c

  1. J

    AC issue with my 2008 Yukon Hybrid

    I have. 2008 Yukon Hybrid. My A/C light blink three times. Checked the fuses , changed the relay and check for pressure in the lines and has great pressure. The A/C just won’t kick on ! I did recently had to replace main battery …Is there something I’m missing to do or check?
  2. D

    Blower Fan

    I have replaced: blower motor resister, blower motor, and climate control module (on the dash). I have Checked all fuses related to blower, HVAC 1 etc that I can see on the fuse box labels. Even Swapped out the A/C Relay. Why is my Blower fan not turning on. Is it a broken wire? has anyone...
  3. qthor

    Electric fan swap. Got a few questions

    Ive done a bit of reading but have not found all the answers to my questions. I have a 2004 Gmc Yukon Denali and it has a clutch fan. It had been replaced within the last year along with a cold case radiator, belt, and etc but it is loud when driving most of the time I turn the a/c on. I want to...
  4. Chevytahoefools

    2002 Tahoe a/c blowing only heat! Help me out!

    I have an 02’ Chevy Tahoe 272,000 miles. One day my ac stopped blowing cold air. The fan works. It blows hot air like a champ. And the heater works fine. ive checked the relay switches in the fuse box to see if anything is blown(we’re all good there) next I checked to see the air compresso. all...
  5. intothewoodsigo

    A/C snowflake flashing after powering down due to blown coolant line and over - heating

    I blew a heater core line and my 07 Denali went into safe mode and powered down the AC because of overheating. Now when I try to use my a/c the snowflake just flashes 3x and is non functioning. I read somewhere while I was waiting for a tow that it has to be reset somehow but can't find the...
  6. Jeffrey Howell

    A/C not cooling, compressor cycling

    Hello all, I am having an issue with my A/C. The compressor is short cycling and blowing hot air all the time. I tried changing the low pressure sensor on the canister and it didn't change anything. I added freon and checked the pressure but nothing changes and it still short cycles. The rear...
  7. olliec420

    09 Yukon Intermittent fan e-fans not running

    So the other day I went out and the a/c kept turning itself off. It was nice out so I put down the windows and was going to look at it later. Im about to get to the store sitting at a light and I notice the temp is over 210 (where it normally sits). I turned the heater on and when I started...
  8. roc1967

    A/C experts in the house? Belt chirp when A/C compressor engaging

    Hey guys... any advice or insight is greatly appreciated. I have my '02 Tahoe for 10 years, it has 180k miles and it's in great condition except for body rust (Indiana!). This issue started a couple years ago, but it was infrequent and very random at the beginning, a noticeable belt chirp when...
  9. T

    No power to climate controls - HELP!

    Hello everyone, I am in need of some help. I have a 2015 GMC Yukon SLT. 141,000 miles About 2 weeks ago the climate control panel stopped working. No power, no ability to change anything, nothing at all. Radio is fine, heated seats are fine, all other electrical seems fine. The Yukon still...
  10. J

    2003 Yukon XL A/C Issue

    I have a 03 yukon xl with the 5.3 vortec mileage is 145,000 the issue i am having is the a/c struggles to blow cold. It only seems to start to cool when the engine is under a load (i.e. driving down the road @ 35+ mph). If it is just idling it isnt cold at all. Another weird quirk is that it...
  11. K

    ‘92 Blazer Heater Control

    I have a ‘92 blazer and I am trying to find the HVAC control unit. This setup has the electric display with the 3spd ac (recirculate button instead of max button). Any suggestions where to look? I can find plenty with the max button, will that work if installed? More concerned about having heat...
  12. M

    01 tahoe a/c

    my a/c is just taking a shit right now, its blowing cool air i have it turn all the way down to 66, with the air being on full. i can drive for an hour and it doesn't get cold. i replaced the blend boor and put freon in but its just not quite getting cold, is there anything else i can try...
  13. M

    1999 Yukon with AC issues

    started to work in AC that hasn’t worked for a while. Rear AC never worked in the 7 years I’ve owned it. So replaced rear expansion valve and oriface tube up front. Replaced O rings where I could since I didn’t know where all the leaks were and the system was empty. Vacuumed for 45 minutes and...
  14. 0

    04 Yukon a/c in back, not so much in the front

    Hi everyone. I love these vehicles, so I bought my son one to drive and learn how to fix automotive issues. It has the automatic digital control in the front with the three knobs that control the rear a/c overhead. I have taken the blend door actuator out that is close to the trans tunnel on...
  15. X

    2003-2006 Rear HVAC/Radio Control Backlighting?

    Is the rear HVAC or Radio control panel backlit? The one in the back of the center console on the floor of 2003-2006 tahoe, suburban, silverado, and avalanche. I took mine apart, it has bulbs, they are not burnt out (i confirmed by measuring continuity across the bulbs). But they do not light...
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