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Old 08-13-2013, 12:37 PM
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JamesDean JamesDean is offline
Electrical Engineer
Join Date: Apr 2005
Location: NE Ohio
Posts: 5,034
Originally Posted by ROLLGUY View Post
The cruise control servo is mounted under the intake manifold, and has nothing to do with the trans. It is common for these units to fail. I had one fail on me while revving the engine in the driveway. It caused the engine to race, and not idle down. If I was driving the car at the time, it might have caused a crash. Chances are the linkage was removed to prevent a similar occurrence. It is easy to hook back up, but be cautious, it is not worth crashing the car to have cruise control!
Not that common for the actuators to fail. It can happen certainly, but in my experience, the failure is mostly in the amplifier. I think out of 250+ repairs less than 10 clients have reported actuator problems.

Was this failure during revving on a Mercedes?
Cruise Control not working? Send me PM or email ( I might be able to help out.
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Last edited by JamesDean; 08-13-2013 at 12:51 PM.
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