chamber, I tried changing the relays. nothing. the next step would be to have the GEM checked according to some posts on another diesel truck site. I really do not want to spend $400-500 on the GEM, any ideas where to find one, Ford part number is F81Z-14B205DE. The dealer says these are year specific and will not interchange. Have you got about what else it could be??? I'm getting very flustered with the problem.

Thanks for any and all ideas

Wyatt