I have a f350 diesel and my cruise control works fine when the engine is cool but won't engage when it warms up. Any suggestions would be appreciated. This won't help you on your explore but it was the only way the site would let me post. I'm new on this site so maybe I just don't know how to do it.
you should scan for codes. a brake pressure switch can go bad and shut off your cruise control. It's on the master cylinder. If it give the wrong pressure reading the cruise will thing the brake is on and shut down.