*A misadjusted brake (stop) lamp switch. This could also cause an intermittent problem.
*Loose or corroded electrical connections at the servo. Corrosion should be removed from electrical
terminals and a light coating of Mopar MultiPurpose Grease, or equivalent, applied.
*Loose or leaking vacuum hoses or connections.
*Secure attachment at both ends of the speed control servo cable.
*Smooth operation of throttle linkage and throttle body air valve.
*Failed speed control servo. Do the servo vacuum test.