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1992 Cadillac Deville

Tiny
SEAN03
  • MEMBER
  • 1992 CADILLAC DEVILLE
  • 135,000 MILES
I tried to pull a vacuum on my cruise control servo. When I did the vacuum It wouldnt even read the vacuum. I pulled one of the hoses and put my finger on it and it was holding the vacuum. Does this mean the servo is bad. Is their a way of rebuilding it. Also I did it with the car off. Does the car need to be turned on or does it need to be at the point before you start. Thanks.
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Sunday, April 15th, 2012 AT 6:42 PM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 33,864 POSTS
If you're trying to make the diaphragm pull the throttle cable, it better not do that unless you electrically activate the vacuum solenoid, otherwise it would always be applying anytime the engine was running.
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Sunday, April 15th, 2012 AT 7:39 PM

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