Hello, being new and having searched the forum for a fix and havent found one. The cruise control on my truck isnt functioning, and there is vacuum at the unit and power to the relay. Any other ideas as to what the problem could be?

 

switches?

 

You can cross the vacuum lines at the servo to apply vacuum to the piston. This will check the vacuum piston and the cable. Most likely needs a servo if it passes the vacuum test and your clock spring is ok.

 

I'll go w/ the switches...when the trucks get old, these dang ol switches just seem to stop workin...thats the problem i've got w/ my 91 explorer...the switches are just worn out...