2016 GMC Yukon rear AC cold, front AC warm – anyone seen this before?

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Cedric Nuttall
Topic Author

4 months 4 weeks ago #2923 by Cedric Nuttall

Cedric Nuttall created the topic: 2016 GMC Yukon rear AC cold, front AC warm – anyone seen this before?

I'm losing my mind over this. My 2016 Yukon Denali has dual AC, and the rear system blows ice cold, but the front vents are barely cool, almost warm. It doesn't matter if I set the front to LO or 60 degrees, it's the same lukewarm air. I've checked the refrigerant level and it seems fine. The compressor is engaging and the pressures look normal according to my cheap gauge. I took it to a shop in Dubai and they suggested it might be a blend door actuator or a problem with the front expansion valve, but they weren't sure. I'm looking for a https://caracrepairsharjah.ae/brands/gmc/gmc ac cooling service sharjah that has experience with these Yukon/Tahoe dual AC systems. Has anyone here had this exact issue where the rear works perfectly but the front doesn't? What ended up fixing it? I'm worried it could be a leaking evaporator core which I know is a dashboard out job, and that's going to be expensive. But the fact that the rear works fine makes me think the overall refrigerant level is okay, so maybe it's a front specific component. The car has 120k kilometers on it and I'd like to keep it for a few more years. If you know a good AC specialist in Sharjah for GMC or Chevy, please share. Thanks for any help.

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Cecil Grimblethwaite

3 months 3 weeks ago #3073 by Cecil Grimblethwaite

Cecil Grimblethwaite replied the topic: 2016 GMC Yukon rear AC cold, front AC warm – anyone seen this before?