1989 Buick Park Avenue loss of pressure

1989 BUICK PARK AVENUE
15,000 MILES • V8 • 2WD • AUTOMATIC
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KENWHITE63
  • MEMBER
  • 1 POST
after changing the rear brakes- and I believe they were bled correctly, there is a loss of pressure the more the car is driven. is there anything else, or maybe there is air in the lines still?
Dec 5, 2009 at 8:18 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,992 POSTS
Try rebleeding it again, did you adjust the brakes if so -could be the brake master cylinder/brake booster
Dec 5, 2009 at 8:20 PM
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