Loss of Speed Control
Does anyone have any troubleshooting resources for the speed control (cruise control) on a 1991 Ford Econoline E350 (Tioga Arrow)? I've looked at the workshop manual (https://manuals.co/workshop/ford...
Forum Discussion
MattR wrote:
It turns out the brake light bulbs were not burned out but they were making poor contact. I rotated them until they made better contact and now my cruise control is working. Thank you everyone so much for all of your suggestions!
THat will do it .. yes. Glad I suggested checking the brake lights.
Folks so you knwo here is how it works
The Cruse control has wires connected to BOTH SIDES of the brake light switch It looks for 12 volts across these two wires.
IF 12 volts is present then
1: The brake light fuse is good
2: The brake light lamps are good
3: The brake light switch is OPEN (Pedal in the UP or released position)
When you "Touch" the brakes this switch closes and the 12 volts goes away. So the cruse control say "AH. he wants to slow down) and releases the throttle.
