I'm having the same problem. I ordered Larry B's contacts before I saw this post, as kind of "I'll see if it works"VH,
Do you hear a "click" down at the starter when you turn the key? If yes, then it's likely the starter solinoid contacts are worn and/or corroded and in need of replacement. New one's can be ordered here:
Larry B's Starter Problems Solved Here
Regards,
John L.
Glad my kids grown; now if I cannot find my tools I have no one to blame though!!!!