Ford E350 - 460 "hiccup"
UPDATE: Today I finally got to replacing the ICM. Boom. Fixed the problem. I found the replacement part at O'Rielly's and connected it, started the engine and within a few minutes knew the problem was...
Forum Discussion
theoldwizard1 wrote:
It could be a bad electrical connector or a bad solenoid.
We had a smaller Ford van about that vintage (1992 Aerostar). It had a Vehicle Speed Sensor (VSS) mounted on the top of the differential. One 10mm capscrew and an electrical connector.
VSS went bad on a trip. First thing we saw was the Rear Antilock Braking System (RABS) warning light flashing. Then the cruise control dropped out and the odometer stopped rolling. Speedometer was electronic and we lost that. AND, it came out of gear!
We drove home in "D" and not "OD" and the transmission worked fine. Just no Cruise, or RABS, or Speed/Odometer. New VSS cured all that. I think the Ford automatic overdrives of this vintage have "electronic overdrive" but the rest of the transmission is conventional hydraulic shifting.
The VSS is magnetic. Things just might work better if you pull it out, clean it, and reinstall. It's on an O-Ring, so it shouldn't leak if you clean the area before removing the VSS and make sure you don't lose the O-Ring. Another member here has solved several problems cleaning the VSS.
