Thanks guys!!
I haven't replaced the relay. I was under the impression that since we can start the truck by jumping the relay, that the relay is ok.
I did have some corrosion on the terminals, cleaned them, but it is conceivable that there could be corrosion in the cables as well.
I'll check for corrosion in the cables tonight.
Thanks again and I'll let you know how it goes.
Cindy T