help!! my cruise control stopped working on my 88na. when i set it and take my foot off the gas, the car slows, the rpm's drop, then after a moment, the tach jumps to about 3k, and then cruise shuts off as if i had tapped the brake pedal. A couple of times after this has happenned, about 10 min later car would be on cruise, tho it wouldn't say so. i had to tap the brake a couple times to kill it

any ideas?

 

The cruise control is controlled by a vaccuum line coming from the TB. Check to make sure the hose isn't cracked or broken.

 

what is TB?

 

Throttle body.

 

sounds like the actuator is failing.

 

thanks for the tips....i will investigate