Brake booster itself gone bad, or check valve? - JeepForum.com
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Go Back JeepForum.com > Models > Jeep Wrangler Forums > YJ Wrangler Technical Forum > Brake booster itself gone bad, or check valve?

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Unread 04-03-2010, 01:11 PM   #1
Neo1130
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2009 JK Wrangler 
 
Join Date: Jun 2009
Location: Olympia, WA
Posts: 623
Brake booster itself gone bad, or check valve?

Curious if one is more prone to failure than the other? I know the check valve is only about $6 with grommets so I can try that first. But the past month, every time I go out to start the Jeep, the brakes are ROCK hard. It's like the vacuum reservoir is leaking all of the vacuum out and causing the problem. This also happens about 2 hours after shutting the Jeep off. Doesn't cause drive-ability issues but I want to get this fixed before it gets bad and causes an accident.

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Unread 04-03-2010, 01:22 PM   #2
Mark05059
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1989 YJ Wrangler 
 
Join Date: Mar 2009
Location: quechee Vermont
Posts: 4,266
personally for $6 I would do the check valve and if its not it then you will have a spare when you put in the new booster.
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