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Old 09-14-2003, 10:27 AM
WilliamJ WilliamJ is offline
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Join Date: Sep 2003
Location: NC
Posts: 43
Originally posted by Richard Eldridge
The surefire way to get the cruise control going is to remove the amp with its clamp from under the dash.

You could try cleaning the cable contacts with a pencil eraser and/or tuner cleaner (don't smoke if you use it), and then snapping them back together. Maybe then it will work.

If it does, fine. If not, then check the connectors on the actuattor, which is a thingie about the side of a fist with a dome bolted on top of it. If this works, hooray.

If it still doesn't work, I would remove the amp and the actuator and send them to a rebuilder, such as Peter at GDI. Thomaspin has another repairer that might charge less.

The good news is that this will almost certainly fix it for years to come. The bad news is that it will cost from $200 to $400.

It is a dead accurate cruise control, unlike the sporadic things GMC puts out.

I personally thin it is worth it, especially if you take a lot of long trips.
i did these two things....the only thing new is that if i hold the CC switch it will maintain that cruising speed. how do i determine if the amp or the actuator is the culprit? i found an actuator for $206.00. this seems like a reasonable deal. there is one salvage place in charlotte i will check first. i might get lucky an a cheapo used one.
85 300sd 210k
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