Random shut down

[robert3rekab]

OK so I replaced every fuse in the dash and nothing has changed oil pressure gauge keeps pegging out still when you turn the key on. no start, ect.

Rawze, I know you have shown many. many people how to do this whackamole trick on the ECM case to verify that it is a bad one. Have You ever seen a situation like mine where after it was tapped on and shut off. the truck would never start up again until the E C M was replaced? Thank you.