Look for the kind of problems in this thread
https://www.ford-trucks.com/forums/1...-no-start.html

 

I can tell you that at this age, connections are going to be a real issue. A lot of what I do at work to solve electrical issues it to remove and clean components, then hit the contacts with DeOxit and put it all back together. My co-workers tease me about the "Pixie Dust" (DeOxit), but as long as I keep saving the day - they can tease me all they want.

I have saved the company countless tens of thousand of dollars that the vendors would have charged for replacing components - and that doesn't even count the down time I prevented. Case in point - a typical "special" PC for controlling what's called a "stamper" runs about $5,000. I've lost memory on these, graphics, and communications. Spread a little pixie dust and we're back online.

Sometimes just pulling an item and re-inserting it cleans the contacts by a swiping action - but the DeOxit reconditions the contacts and they last much longer. The previous owner of my boat "dumped" it on my lap for a good price because all of the electrical was failing. DeOxit, a wire brush, and some screw turning brought the whole boat back from the brink (that and some damaged breakers from bad contacts). So... I ended up with a nice boat for less than it costs to buy a used car.

 

I used to use DeOxit when rebuilding vintage analog musical mixing boards. The potentiometers would get "noisy", and though it is possible to disassemble and clean them, when you're looking at a 64-channel mixer, that's probably several months of work (likely leading to insanity). Spraying each pot with DeOxit while moving it through its travel, problem solved.

 

Here we go again. Truck hasn't started or rams in a month. Went to see if I could move it for my lazy *** mail man. And what do you know it fired right up. What the hell?