82 cruise control

[NHcamper]

What is the most common issue on why these don’t work. Just trying to narrow possible issues with these units. 

[Avanti83]

Old age mostly. 

The oldest test for cruise control of that era is to pull up on the brake pedal with your left foot before you engage cruise. An improperly adjusted or failed brake disengage switch is probably the most common cause of problems.

After that, it's a general tracking down of the usual problems. For starters, I believe you still have the vacuum controlled servo. Be sure it holds vacuum and it has a source of vacuum and no leaks.

Edited September 19, 2018 by Avanti83

[NHcamper]

Thanks. Would love to have CC on my car.

[studegary]

Simple things first -

Be sure that it is getting power (fuse). 

Some of these systems have a switch where you have to turn it on before using it (isn't automatically activated).