jr stump

Can anyone help provide some easy ideas to troubleshoot?
I can't find a diagram online of the fuse box for my truck. 1992 d250. Ac was working fine until recently, went camping on some gravel roads and maybe it jarred something loose?
Had the ac system fixed a while ago and they bypassed the computer (truck was throwing off lots of codes, ac, and alternator and speed sensor have all been bypassed). maybe the computer is going bad , truck runs great tho.
Anyway, could it be a fuse? or other thing that's easy to check? thanks much!

maybe368

If all those things have been wired out of the pcm (computer), then the failure of the computer would not affect the ac. How did they wire the ac when they removed the ac from the pcm? A switch? I would look at the grounds and take a close look at the ac clutch wire and see if it is frayed or broken. That is what happened to me once...Mark

oliver foster

Wow a sure sign of spring is in the air...several A/C posts in one day.

Kinda like the several posts everyday in the fall as people freak out of dimming headlights and such as their grid heaters kick on for the first time in months.

maybe368

Hey Oliver,what is this spring of which you speak? We have two seasons, hot and not so much, makes things simple...Mark

oliver foster

Not quite spring up here either, as there is still snow in the woods around my house.