You might want to check the "safety switch" on your brake pedal. It
disconnects the cruise control when you touch the brake pedal.
Sometimes the switch is not making proper contact, other times the
vaccuum line to the switch is cracked, and it looses vaccuum and
shuts off the cruise control. The switch has both electrical and
vaccuum contacts. I'd try the vaccuum line first. You can block off
the vaccuum hose with a clamp. Drive the van, and if the problem
doesn't occur again, you know its the vaccuum line.

Ric

At 09:31 AM 12/4/2007, Mervyn Readman wrote:
>I have a 90 Carat that has lost it's cruise control. It started a good while
>back with it jumping out of cruise if I hit a bump. It got worse with small
>bump shutting it down. Then I would press the cruise button and I could feel
>it press the accelerator slightly but then fully disengage. Now there is
>nothing when the cruise button is pressed. It's and auto tranny and it has a
>Subie engine but I tend to think it is in the electric system up front and
>not in the vacuum in the rear. Maybe I'm wrong. Any ideas? Thanks all. Merv