Van's popped switch.
yup, this guy's ford van got to where it would pop just about everytime he put the key in the switch. Must have been some kind of static problem.
They are an inertia switch. Like a nail dangling inside a ring of steel. If you bump the car too hard, as in shutting the door, it might the nail to swing over and make contact with the ring of steel. Ford says no, but it seems like one accident and the switch is weakend or made to be just too sensitive. I'ts a booger to replace too. According to my friend.
Anyway, in replacing the switch he must have fixed it.
Too bad you have a shop!!!!
My dad had one in the 50's. Life was much simpler back then.
I did most of the ancillary stuff, and he did most of the Engine work. He finally got smart and sold it all. Went back to work for Greyhound as a Forman. I went on to a much cleaner, indoor place to work.
I still do all my own work though (with the exception of the last two very cold weeks). I'm getting real close to finishing my 77 F-150/460, but it'l wait till it gets a little warmer.
97/F-150/4.2L/XLT/Canopy. Old boats and motors too. I like the old Fords but I gotta have the features now that I'm old.