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Re: Cruise Control.. Last minute before trip! HELP! 700 1989

Since it was self-inflicted (happened while you were messing around with something else), anything that might commonly happen to a similar car doesn't apply to yours...but I'm going to take a stab at this anyway.

Did you pull the guage cluster when you were working on it? The speed signal to the cruise controller is a single yellow push-on wire that goes onto the "E" connector behind the speedometer. Wrong terminal or not connected will certainly kill the cruise control.

Another thing you may have done is mislocate the silencer pad (underdash cover) causing the brake pedal to be held down slightly (it only takes 1/4") which can keep the vacuum "dump" valve open. It's easiest way to check this by simply lifting the pedal with your left foot and holding it up while you try the cruise control. If it suddenly works, you have a pedal/safety switch adjustment or binding problem.






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