I’m still searching, but could use some help. I have a '94 Ranger, 4L engine, auto, heavy tow package, with 76K. When I bought it at 60K, I corrected all the age related stuff, so it’s reliable and drives like a 3 yo vehicle. Except the cruise control. There truck was before they had a dash light to indicate the unit is on (or off). I don’t think the PO ever used it, and it worked flawlessly for 3 or 4 years.
Starting about 2500 miles ago, it had intermittent problems. The next time I’d dive the cruise worked fine, sometimes it was 2 tries later, until recently. Following the previous discussions here, I checked the brake lights were working and inspected that the brake light switch is attached properly. I did not find other articles online about repairs or test procedures.
I’m hoping someone might know what else to check. Obviously, on a truck this old, it could be most anything even if in great condition. There have been no hacks to the truck. CC is handy, since the ride experience in it and my car is so much different… use CC on both regularly, to avoid excessive high or low speeds on the freeway.