The cruise on my 85 300TD suddenly stopped working a few days ago. I immediately noticed the cruise actuator in the engine compartment was "clicking" whenever I turned on the ignition key (and not using the cruise stalk) before the car actually started. If I unplug the cruise box, the clicking stops. I have done the following without any idea what the problem is.

1. Replaced the cruise box with a rebuilt known good one from our buddy "JamesDean".
2. Tested power to each pin at the box from the stalk.
3. Tested actuator at plugin.
4. Replaced the actuator with a known good one to be certain (checked by James Dean).
5. Exchanged the computer module on the passenger kick panel (only on 85 models).

The problem remains with the actuator ticking away whenever the ignition is on (even before the car starts). I need someone smarter than I to help as I am out of ideas!!!
I just spent 2 hours searching the net with no answer. This is a known problem, but there are NO solutions found!

Richard