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07-28-2009, 12:20 PM
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#1 |
 ULTIMATE
Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
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There is a vacuum check valve on the brake booster. If that valve fails it will cause the pedal to become mighty hard. You can unscrew it from the booster and blow in either side to see if it is OK.
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