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Out of nowhere...NO BRAKES!
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wunderbarVW
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Joined: September 20, 2011
Posts: 41
Location: Polk County Florida
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PostPosted: Tue Oct 25, 2011 9:37 pm    Post subject: Out of nowhere...NO BRAKES! Reply with quote

So yet again my wonderful 1981 air cooled vanagon throws another challenge at me.

here is my situation. trust me its a quick story...i got in my vanagon after sitting for a week, started it up fine, put it in gear, and when i pressed the brakes, the peddal went strait to the floor! the van didnt stop.

i checked my brake fluid resevoir and it was at level.

any hints as to what could be the problem? i dont see any leaks anywhere and all brake lines were replaced recently.
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81 Vanagon

"VW's don't leak oil...they leave their mark."

"VW: 0-60...EVENTUALLY!"

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IdahoDoug
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PostPosted: Tue Oct 25, 2011 9:52 pm    Post subject: Reply with quote

My first reaction is a master cylinder internal failure if you're getting zero braking at any wheel. If you're getting brakes at two wheels and not at two then it would be something else.

DougM
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1987 2WD Wolfsburg Vanagon Weekender "Mango", two fully locked 80 Series LandCruisers. 2016 Subaru Outback boxer. 1990 Audi 90 Quattro 20V with rear locking differential. 1988 Mitsubishi Van w/ dual spinny seats, mid engine and solid axle.1990 burgundy parts Vanagon. 1984 Porsche 944, 1992 Lexus LS400, 1988 Toyota Supra 5 speed targa project in pieces.
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danfromsyr
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PostPosted: Tue Oct 25, 2011 9:53 pm    Post subject: Reply with quote

sounds like the symptoms for a faluty master cylinder.

good news is you don't have to crawl under the chassis.
bad news is you'll have to bleed all of the brakes
it's likely long overdue for a brake fluid flush anyways.
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wunderbarVW
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Joined: September 20, 2011
Posts: 41
Location: Polk County Florida
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PostPosted: Wed Oct 26, 2011 1:09 am    Post subject: Reply with quote

here is a quick video i made so you pros can have a little more insight as to what im dealing with. just copy and paste the link into your browser if you cant click it.
thanks.

http://youtu.be/KxzKHNkqYTY
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81 Vanagon

"VW's don't leak oil...they leave their mark."

"VW: 0-60...EVENTUALLY!"

"If Chuck Norris couldn't fly, he would drive a VW"

"The only good thing about Hitler= the VW"
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Wildthings
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Joined: March 13, 2005
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PostPosted: Wed Oct 26, 2011 6:31 am    Post subject: Reply with quote

The noise if from the booster. Sounds like something has fallen apart inside it.
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Saguache
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PostPosted: Wed Oct 26, 2011 6:57 am    Post subject: Reply with quote

Master cylinder for sure, potentially an issue with the boost (check for fluid in the boost).
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randywebb
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PostPosted: Wed Oct 26, 2011 1:15 pm    Post subject: Reply with quote

while you're at it, replace all the rubber hoses with new rubber (unless you've done that in the last 7-10 years)

repl. brake fluid every 2 years

check the floor - brake fluid has likely destroyed the paint
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