REPLACE EVERYTHING MY AC STILL NOT WORKING :(

Did you take it to the dealer and have them look at the cab/body or the Ecm to see what's going on?

replacing parts without knowing what's happening with the controls is a waste of money.

 

If it's any consolation, if you can hold out, in another 2 months, attention will turn to "no heat". Clearly a leak in the system and a competent mechanic will find it. It's not the space shuttle.

 

When the 'a/c stops working' does the a/c compressor clutch still turn? If not it would be due to low refrigerant or electrical whether that be wiring, a sensor/switch, or a module.
4 ways to find an a/c leak
1 - it will be oily where there is a leak
2 - after the system is pumped down/evacuated/vacuumed the pump is turned off along with the gauge and then monitor to see if the vacuum drops. This will only tell that there is a leak but not where.
3 - flourescent dye in the system
4 - a refrigerant leak detector

 

How many pounds of freon are they recovering before they charge the system? If it’s less than your system requires then you have a leak.

Are you running it on auto and setting the temp or are you running the fan and temp manually? If you can verify that you 100 percent don’t have a leak and all the mechanical parts are functioning as they should then you’ll have to have someone check out your cab control module.

 

Any missing freon means there is a leak.

 

Could be a lot of issues they are either ignoring or are too stupid to check. troubleshooting wonky A/C can be a bit of pill but not typically on vehicles this new.

Check the FRONT of the radiator and all other heat exchangers in the way of it are clean. The fan should be able hold a shop rag sucked against the front of the A/C condenser if nothing is plugged up, assuming the clutch is working right, which brings you to the next item on the list to check...the fan clutch. Make sure it is also working.

Theoretically they could be telling you the truth that "nothing is wrong with your A/C and there is no leaks". I assume most shops know how to draw it down and vacuum test an A/C system and then recharge it properly, and the orifice tube and accumulator should have also been replaced if the compressor was, but you might want to go back and review that with the shop that replaced the compressor.

 

I wonder if the space shuttle had air conditioning...

 

I really don't want to dive into the whole flat earth thing, but with what it takes in 2023 technology to keep a semi sleeper comfortable for 8 hours with just a 40-50 degree differential, I'm starting to wonder about any of the space shuttles and stations. How efficient was solar and batteries in the 60's?

 

ouch!

I suggested looking at the computers that run the a/c, to see what they see and if there is an actual leak or there is a sensor or even a computer problem. It could also be a high condenser temp because of a clogged radiator or crap between the two.