A/C problem!

[Jerrouss]

Hello gang,

We have a 2016 GMC YUKON DENALI, that last summer my wife had come home from work saying that the A/C wasn’t working. So I recharged it and it was good up until today. She come home and said that the A/C wasn’t working. So now I’m thinking it would be best to get it looked at instead of recharging it again. Any ideas guys? Anyone had similar experience? Thank you in advance for any advice!

 

[B-train]

Probably a leak at the condenser or a hose connection. If you live in a road salt state and don't use an oily rust proofing medium, then the rear HVAC lines are prone to corrosion. Probably need to take it to a shop.

Also, note that if it is the rear lines and you don't want to fork over many thousands of dollars, ask about using the line set for a pickup truck that connects all the components under the hood without the Y section that feeds the rear. Seen it done many times with good success.

Keep us posted.

 

[RST Dana]

That year had a condenser problem from day 1. It will eventually leak and require replacement. You are outside the coverage GM extended for that part, so unless you have an AC assistant, you will need $1,200 or so of extra funds to be cool again.

 

[Loki223]

Buy one of these

Amazon.com

Then check around the front driver's side inside the grill, looking at the condenser. I could see the UV dye in there, so i bought a new one. Turned out to be an o-ring that had failed and lost all the freon. But since we were already there, replaced the condenser just to have a new one in there i guess. And we replaced the o-ring as well since it was the original culprit. If the leak isn't there, follow all your AC lines and compressor with the UV light, you should be able to spot the leak somewhere, as long as its not up in your HVAC box in the evap core, that's the biggest PITA part to fix on an ac system, everything else is pretty easy