Hi Scotty, I took my 2016 mustang to the local Ford dealership to diagnose my ac. They told me it had power but wasn’t pumping. Tried to charge me 2100.00 just for the compressor. I said no. Bought one myself, used your videos and replaced it. Problem is they lied. The old one wasn’t bad and the new one acts just like the used one. I can’t find the low pressure switch. Only see one by the high press. connector. I’m at my wits end.
Ok, so I only found one pressure switch. It’s directly in line with the high pressure connector for the gauges. 3-wire.
I replaced the “Pressure switch”, the accumulator/drier, and the expansion valve. Followed Mr. Kilmer’s video on the vac and re-charge of a new compressor and walahhh! After approx. 1 minute the clutch engaged and now all is well!
Thank you Scotty and team.
I think your answer is located here with post #8
If the engineers at Ford are right on par with their crappy designs, the low pressure switch will be located somewhere you wouldn't think to look and be nearly impossible to access. 🤣
So I found the dryer but there was no switch. Does this model only have the high pressure switch? Dual purpose maybe
In general, the system has to have a low pressure cutoff switch in order to protect the compressor from damage if refrigerant level gets too low. (All automotive AC systems have this except very early ones that use a sump-type compressor.) It would need to be on the low side of the AC system, usually on the drier. If equipped with a high-pressure switch that should be on the high side of the system.
Thank you Toyotagrl for the response. I’ll look harder at the condenser and get back. ✌️
So I found the dryer but there was no switch. Does this model only have the high pressure switch? Dual purpose maybe