2015 Silverado AC issues Options

[Eredin]

I had a 16 Sierra and got tired of the payment and incompetent dealership techs. Every time I tried to get something fixed under warranty, they literally broke it worse to the point that I had to do it myself every time. Dumped it for a minty 03 Sierra 2500HD gasser and haven't looked back. As far as the AC goes, the blend doors have the inherited gmt900 problem where they need reset. IIRC, you can pull the relay on them in some order and reset it. Easy way to test is to check the driver versus passenger side temps. Just wanted to toss that out there, since it's related to the subject matter and free to check versus gutting the AC.

That's good to know. In this case we could see the oil leaking out of the seal/line where the high pressure line meets the compressor. We replaced the hoses, expansion valve, seals, etc and pulled a vacuum, then recharged it. So far, so good. Though I wonder if I need to put a touch more freon in it. I'm not sure it's quite as cold as it was. I guess I need to take a thermometer with me in my work truck (I have a company truck that's the same year and engine Silverado, but it's a regular cab, long bed in 2wd) and compare the discharge temps between them on the same day.

Keep that blend door reset in mind. It can certainly cause that symptom. Friend has had to reset his K2 twice in the past year, where I never needed to touch mine. Hope the info helps. 😁