"Where would one send it for repair?"

Send to Pelican Parts:
http://www.pelicanparts.com/cgi-bin/...FILTER_928M=ON

 

WOT in those instances would seemingly indicate a lack of road speed input.

CC must be "tapped" into the speedo signal or maybe even the tach signal since using the clutch (or brake) always disables the CC.

And..if the a vacuum loss were serious enough to adversely impact the operation of the CC it wouldn't "take", lock on, the speed setpoint to begin with.

Older CC systems most likely used good grade capacitor in a "sample-and-hold" circuit to control the servomotor. install a low grade, "leaky' capacitor in the circuit and the resulting "leakdown" would cause a decline in the speed control setpoint over time.

Not sure why a CC would "gather" speed but likely some sort of positive current leakage (dust/dirt + moisture?) into that self-same capacitor.

 

Loren are you repairing these units for Pelican ? I thought you did this along with the brains.

 

"I thought you did this along with the brains."

Your knowledge is overwhelming.

 

er okay ? ... if that's sarcasim it is as usual .. underwhelming..

 

"if that's sarcasim it is as usual"

Actually, it's a compliment to you. Sorry you didn't take it as such.