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Vacuum leak coming from under the dashboard?

Tiny
2CP-ARCHIVES
  • MEMBER
  • 1986 OLDSMOBILE DELTA 88
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 111,000 MILES
I have a vacuum leak coming from under my dashboard. Where my brake goes through the firewall into the booster. What could be causing the loss in pressure when I apply my brakes?
Monday, November 8th, 2010 AT 9:56 PM

1 Reply

Tiny
2CP-ARCHIVES
  • MEMBER
  • 4,542 POSTS
The problem you described is probably caused by a power brake booster diaphragm that has ruptured. Your power brake booster needs to be replaced.
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Monday, November 8th, 2010 AT 9:58 PM

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