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Bleeding hydroboost brakes 1995 Astro van

Tiny
JASON DIGGS
  • MEMBER
  • 1995 CHEVROLET ASTRO
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 220,000 MILES
I replaced my back brake lines on my 1995 Astro van and now I cant bleed the back brakes when I open the bleed valve no fluid comes out, and yes I have fluid in the booster. The front brakes work fine.A friend told me hydroboosters was very hard to bleed.I don't know if I need to buy a new booster or not Please help! Thanks :-)
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Wednesday, January 12th, 2011 AT 12:45 PM

1 Reply

Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
This has nothing to do with the hydroboost. You have likely gotten air into the ABS system now and this vehicle requires using a professional scan tool to bleed the system out electronically.
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Wednesday, January 12th, 2011 AT 2:03 PM

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