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If you do need a pcm, I had a hard time finding one as well, but finally I did. Go to "auto module source" all one word I think, you should get what u need there. sent from jsbelectro

Some of the part house parts are just bad from the box or they are cheaply built and don't last very long. Truck has been running great sent from jsbelectro

Ok, there are a few things you need to check. Clutch would be one, but you did that, make sure at the compressor that you have good ground at the plug, and third is it looked like from your video that the system was very low. It may just be too low for it not to come on now. That gauge you have...

I'll tell you what, that was an expensive sensor. $114 from the ford dealer. Some things you just have to use factory parts for. sent from jsbelectro

Well I checked every fuse box and all was goid. Went back to basics and checked all my grounds and hots to the computer, checked the relays, fuses, ignition wires, took all the big plugs apart, pulled wire looms looking for corrosion or a short to ground/power, and went to my refrence line that...

There is one contact in there that melted a fuse. Had to pry it out and clean the terminals. The fuse was for my running lights. I'll look further inside that box and I'll let you know what I find. sent from jsbelectro

Makes me wonder....I did take the fuse box out to check the wires goin indide, but didn't take it apart. I will do that today. As for all the fuses, I used a test light and a dvom and they all tested ok. But ya never know. I'll switch some around. I want to thank all of you for your help and...

I have downloaded all the wire schematics for the pcm connector, the 42 pin connector, obd connector etc. I have tested all the grounds, the one constant 12+ and the 3 grounds. All tested good. I am kinda stumped though on a couple things. With the key off when I go to check some of the computer...

Yea, I hot wired it at the fp relay and it worked, I also manually grounded the computer controlled ground, and the circuit worked fine. Relay clicked and pump came on, but still no start. I even manually grounded the computer controlled IDM ground and still no start sent from jsbelectro

*guys, new here posting, but have got a lot of help from these sites working on my truck.... so my problem started with my truck dying on me in the morning, started it back up and it ran for 5 min until it died again. after that the relay behind the radio quit clicking which is...