Just bought an 08 E350 15 passenger van. it has 30000 miles on it. On pavement it has no problem. However, I live on a clay road that some times has a wash board surface. When I go over the small bumps, the alarms go off with the display reading some thing like " service RSC immediately". The dash warning lights for the traction control and the ABS illuminate. The manual button for the RSC goes to the off mode.

I took it to Ford. Had the 30000 mile service, caster camber kit installed, and rear brakes replaced. Mechanic drove it home with no problem. I take it home and as soon as I hit the little bumps the alarms went off again.

Any suggestions? I want to get the mechanic to ride with me.

Thanks,

 

One additional comment. The alarm will stop after I get back on pavement for a short time. The Dealership said that it showed no codes for this.

 

check for loose connections on the sensors at the wheels. small two to three wire connector close to brake line.

 

Took van to dealer again today. They said it was the speed control sensor. Ordered part for installation next week.