Questions and Answers
Explorer Cruise Control
Q. I have a 1994 Ford Explorer Sport, V-6, 4X4, automatic transmission. My problem is with the cruise control. A few days ago I noticed that my cruise control would not engage. It tried to but would not hold. When I got home I also noticed that I had no brake lights.
I was told that the cruise control also goes through the stop light switch. Well, I changed the switch and now my brake lights work but the cruise control does not work at all. I called the Ford dealer but of course they said to bring the car in for repair.
I don't feel that the price they would charge would be worth it. So, I'm asking for any tips that you can give me. Where do I begin to look? Where is everything located? Is the servo under the dash or under the car? Or is there no servo? Anything that will get me on the right track will be appreciated.
Thanks,
CarlA. The cruise control system is a little complicated because there are so many things that come into play. Briefly this is how it works, The system is comprised of an electronic servo which consists of a throttle actuator with integrated electronics and other parts including the actuator cable, amplifier, horn relay, driver control switches, a brake lamp switch, a deactivator switch and a clutch switch for manual transmission vehicles.
The speed signal is generated either by the Programmable Speedometer/Odometer Module (PSOM) or the Vehicle Speed Sensor (VSS). The electronic servo is mounted in the lefthand rear corner of the engine compartment and is connected to the throttle linkage with an actuator cable. The VSS is mounted on the transaxle.
The most likely problem is the servo itself. Since the test procedures for the cruise control system is about 6 pages long it is not something I can briefly relate to you here. The Chilons and Haynes manuals lack the test procedures needed to test the system so the only recourse you have is to ourchase the factory service manual from Ford, or have Ford to the diagnosis.
Additional Information provided courtesy of ALLDATA
