cruise control help?

[hitman3]

hi i have a 1978 928 Porsche can any one tell me how to work out the cruise control or how tocheck if it is working also were does this part is in the carpic Will be great

[Dozman]

Seems from past if same from 85 onward, resoldering the board helps. Just dont bridge the points with too much solder.

[neil30076]

Check the vacuum line going to the air / control unit in teh front left wheel arch ( you will see the line going through the wall near the brake booster - if its leaking the cruise control will not work. Also follow the wire control from the throttle assembly back to the same unit,make sure its not broken or hung up on something. I've seen both on my 81, and more than once!