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1992 Cadillac Deville

Tiny
SEAN03
  • MEMBER
  • 1992 CADILLAC DEVILLE
  • 135,000 MILES
My 1992 cadillac deville brakes do not work. I shifted from park to drive and the car took off. The brakes were completely locked up. The pedal for the brakes felt like a brick it would not work. I had to shift it into park so it would stop. I have a automatic transmission. I changed my master cylinder and break booster almost one to two months ago. I also can not get my brake drum on the right rear side. Thanks.
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Tuesday, April 17th, 2012 AT 7:47 PM

9 Replies

Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Rock hard pedal indicates booster not functioning.
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Tuesday, April 17th, 2012 AT 9:08 PM
Tiny
SEAN03
  • MEMBER
  • 523 POSTS
What about it taking off. Im not touching the gas and it just goes.
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Tuesday, April 17th, 2012 AT 9:10 PM
Tiny
FIXITMR
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Idle too high?
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Tuesday, April 17th, 2012 AT 9:18 PM
Tiny
SEAN03
  • MEMBER
  • 523 POSTS
How do I fix that. When I turn it on it revs up and it never use to do that. Thanks.
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Tuesday, April 17th, 2012 AT 9:36 PM
Tiny
FIXITMR
  • MECHANIC
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2 problems may be related. A big vacuum leak would make booster fail and car rev.
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Tuesday, April 17th, 2012 AT 9:39 PM
Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Check booster hose itself.
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Tuesday, April 17th, 2012 AT 9:40 PM
Tiny
CADIEMAN
  • MECHANIC
  • 3,544 POSTS
Push off and warmer buttons on the a/c panel untill u see all the segments light then release it will start going through all the cpus write down the codes and come back.
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Tuesday, April 17th, 2012 AT 10:14 PM
Tiny
SEAN03
  • MEMBER
  • 523 POSTS
No error codes I checked for that today. The hose is on the brake booster. I thought for sure I would find a code today but I didn't
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Tuesday, April 17th, 2012 AT 10:20 PM
Tiny
CADIEMAN
  • MECHANIC
  • 3,544 POSTS
Unplug it and test the vac. On the hose with a gauge!
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Wednesday, April 18th, 2012 AT 4:12 PM

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