my cruise didn't work when i got my 85. the cruise cable connects to this round can thing under the hood, by the firewall, on the drivers side. the rubber boot had broken and i took a stiff L bracket and used metal hose clamps and the original bracket to connect the cable back on. it works now but i have to hold the clutch pedal up which has to do i think with pedal drop, this will be fixed with my new clutch and cable. But look where the cable connects under the hood and see if the rubber sleeve is broken. If this is the case, youve found the problem. If not try to use it while holding your clutch pedal up with your foot. hope you get it working.