randeez
Full Access Member
Large line is suction side, small line is the high side.Large line isnt the high side?
My lines aren't stock anymore, so trying to answer from memory
Right after the compressor isn't a switch, it's a transducer, reads psi in the system, don't jump it out.
If you follow the high side (small) line back from where it passes thru to the evaporator at the firewall, there's a tube nut in a bulged section of the aluminum tube, that's where the orifice tube is located.
A little further back from there is where is splits off to the rear ac.
Would agree with @j91z28d1 Likely low refrigerant, check the service ports first