I have a 2016 f250 bought in December with an ac problem. The temperature in ky has heated up the last month and the ac has not been able to keep up. The fan seems to work properly but, the air temps seem to vary while on the same setting(max). The problem also varies from nonexistent to mildly bad to horrible. The ford dealer found low side pressure at 60psi and the high side at 300 psi. At idle. Evac and recharge and test. Within a day or two, same problem. A week later at the dealer. Low side 50. High side 275. Found and replaced sticking expansion valve. Road tested and passed. Again within a day or two same thing. Yesterday it was 100 outside and the vent temp was 65-70 degrees. Today at home I ran the ac 4 or 5 times and is was cooling around 45-48 degrees. The outside temp was not as hot today as yesterday. The truck is the lower trim lariat with the dual zone ac. It does not have the voice command.i requested the dealer contact ford for guidance. The service advisor was going to consult with the service manager and discuss what to do and to discuss opening what he called a "hot line" to ford. This truck is rapidly getting too much shop time for a new truck.any words of advise would help.

 

Light a fire under the dealer.

 

Thought I'd let everyone know how my experience turned out in case anyone else has the same problem. After the fourth attempt to repair the ac, the service advisor opened a "hot line" which supposedly brings in a ford engineer to consult on the problem. In looking into my issue I found out that my truck met the qualification as a lemon law candidate. With this knowledge I asked the service advisor( he was in charge to the heavy truck service) what ford proposed to do about the malfunctioning ac. He said the engineer advised that there was a sensor on the evaporator that they suspected was not operating correctly. The fix was to pull the dash and replace the sensor. There was also an issue of an odor of moldy wet socks from the vent during high humidity that I never really pushed. At this point I ceased contact with the dealer. I felt that this was to be the fifth repair and was not guaranteed to be the problem. I felt I was taking all the risk. 1) at least five repairs on the ac devalued this truck. 2)taking the dash out exposes this truck to future fitment issues or pinched wires, loose plug ins.. Etc. I told the regional service rep. That I was willing to work something out with ford or I had no choice but to file lemon law on the truck. Ford offered me 400.00 which sealed the fate of this truck. I filed the claim through the BBB which was the stated arbitrator for ford in my state. Lots of redundant paperwork. Had the hearing I was there, the arbitrator and ford was on the phone with a female that spouted the ford party line and a fellow that had a lot of experience on ford ac. I won the arbitration on the diminished value claim and the arbitrator issued for ford to replace my vehicle. I would advise anyone to communicate or follow up through email on all service repairs.going through this I didn't because I never dreamed things would get so messed up. Luckily my service reports told my story which was pretty cut and dried. For issues that could easily be interpreted different ways your clear communications will be needed. I could see where going through this process a person could easily fall through the cracks.