Ok, I was thinking junction block corroded but IIRC that usually takes out all the power, dash lights etc..

 

Check your CPS pigtail wires too. They have been known to go bad.

Clay has replacement CPS pigtails too. http://www.riffraffdiesel.com/cps-harness-pigtail/

Stewart

 

Just replaced the pig tails a few months ago

 

Solder and heat shrinked or did you use butt connectors?

 

Not sure the dealer did that one, had a fried pcm so they programmed it. And I had them do that while it was in there

 

Off that info I'd want to make sure they screwed in that 10mm bolt properly, keeping the harness secured to the PCM. I'm sure it is, but I'd wanna check just to verify.

I'd also wanna check the pigtail to make sure all is well there too. Eliminate the easy stuff, ya know?

Stewart

 

Also take a look at the cable where it sits on the driver side valve cover. Sometimes the insulation wears through there.

 

Yeah that was done months ago I just did injectors last weekend and installed the hydra chip so I had to pull and reinstall the pcm. Yeah I checked all the stuff I could without tools before my friend got down to pick us up. I did have one tool and that was a 10mm socket and ratchet so I checked the 42 pin connector and the 104 pin connector for the pcm for proper tightness

 

What cable? On the 42 pin connector?

 

see post nbr 20 in this thread
https://www.ford-trucks.com/forums/1...l-issue-2.html

 

Yeah I figured you where talking about that I will check it out in the morning and see

 

Do I ever have this tee shirt. Pull the chip and see if it will run without stalling. It's a pain in the butt.. and foot... and neck... but it will drive. I have 160/100s and I had to drive 400 miles without the chip to get home. It turned out the borrowed chip I had was previously installed on a PCM with the edges fattened up with solder. This spread the contacts on the chip, preventing them from getting good reliable connection on my PCM with skinny contacts and the truck would randomly stall/not restart. You might just have some crud on the PCM connector to the chip.

While driving like this, the biggest pain is trying to regulate speed in town, but highway driving is fine. Decelerating to an idle is really funky.

 

So I checked everything out and everything is fine, so I had it brought to the shop, they think it's the pcm the did a pin point test and said it is the pcm and that they ran codes and there is a code for memory loss on it. But if it was the pcm wouldn't the truck not start at all?

 

Not sure on the run or not. Did you buy that PCM from Ford, or somewhere else and have them program it?

Do you remember the code they found? P0603?

 

One cause of a memory loss code is disconnecting the batteries.