AC blowing hot air?

JGMATA36

MEMBER
2005 FORD EXPEDITION

I have a 2005 ford expedition and the ac my truck is not working anymore it blows hot air. A couple of they ago the ac was working fine but then I check to see if it need more 134a I look like it need a little and I added a full cand but after I added the can and after a while a burst sound and it smell like the gas came out but the air was working fine I didn't do anything to it after but it was not cooling like it was before. Two days I go I check the gages and it need some 134a so I added another cand and ti was working fine but when I took it for a ride the I head the same bursting noise and then hot air was coming out it check the motor and it was not running and then I try to check the gages but it did not let pulg the house the valve. Can you tell me what happen or what can I do to fixed it or what else can I check.

3 Replies

MERLIN2021

MECHANIC
17,250 POSTS

To ill an A/C system correctly, you need a manifold gauge set so you can see the pressures in the system, to me it sounds like you added too much, and the relief valve opened and vented the R-134a to the atomsphere. This also sounds like the compressor has gone out or the system is low on charge or a fuse is bad, these videos and guides can help us fix the problem with diagrams below to show you how on your car. I have included (below) the air conditioner wiring diagrams as well so you can see how the system works.

https://youtu.be/4UjfQKvrB6Y not working

and

https://youtu.be/uZrQCGwXfek recharge

and

https://youtu.be/yrhWKlQEPWw leak detection

and

https://youtu.be/4EqdrBVb0sY vacuum and recharge

and

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak

Let us know what happens and please upload pictures or videos of the problem.