Thread: RPMs drop when brake applied; reverse hissing leak
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Old 05-06-2014, 08:15 PM
07XL 07XL is offline
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Quote:
Originally Posted by dangerranger94 View Post
more then likely your brake booster is leaking
^^
Yep that's where I was going with this lol


That's also causing a vacuum leak which is dropping your idle.
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