AC Won't cool

Buy a new thermo and put it in, you may have gotten a bad one?

 

I think you should wait until you put in the new temp controller and see if that works before you have to spend the $ on new freon from breaking open the system to replace the ex. valve?

 

How much refrigerant is in the system and how did you get that number? It's very possible it's leaking out slowly.

 

Be sure when you are bending the temperature sensor on the end of it that sticks into evap. that you tape it so it doesn't rub on the heater box and put a rubber seal where it leaves the box so it can't rub? You can buy a fancy lower price freon leak ck sniffer at Ebay,
but take the battery out of it when you're not using it and it will last much longer?

 

No. If anything, that would make it work better, because of constant air across the condenser. So rule that out, and don't take your truck back to those guys.

 

That's my guess too. Put in new evaporator, but it's leaking, and the shop didn't care. Come Summer time, no freon.

Need to throw some gauges on it. If the TEV is messed up, the high side should skyrocket all the way to the max. Otherwise, I bet it just needs charged. Now that's if the compressor is even engaging. If it isn't, it could be empty of freon, or about ten other things that are above my pay grade.

 

Indeed. He could of slightly pinched an o ring or pulled a thread after over tightening a line, evap could have been faulty straight from the shop etc etc to cause a small leak. I just found one on my condenser with a cheap 25 dollar sniffer from Amazon. Worth every penny!

If it's totally empty to where the clutch won't kick on you can jump the low pressure switch or manually power it off another source like the trinary switch.