I Know this subject has been beat up on here, but I cant seem to find the exact answer I am searching for. My AC is not working. If I jump the relay on the driver side, the compressor will work and I get cold air. If I try to jump the pressure switch on the passenger side, I get nothing, I am jumping the outer two wire on the plug. Is there anything else I am missing that is causing the compressor to not work? The truck is a 92 CTD.
?

 

What year model is it ?

 

I'm not the expert on what fails on Dodges...

But have you checked the cycling switch?? I'm assuming you've put gauges on it and have reasonable pressure? Ie, the low pressure switch isn't getting you?



Michael

 

Does the cruise and OD (if an automatic truck) work?

 

My Cruise doen't work on my 5spd

 

you need to btpass the computer, they use a cycling switch as well as the computer.