Thread: rough idle 2008
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Old 09-02-2015, 08:38 PM   #3
P05Crossfire
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Re: rough idle 2008

Quote:
Originally Posted by Crvett69 View Post
if you run the engine for a few moments then shut it off you should be able to hear a hiss if you apply the brakes with the engine off. booster should hold vacuum until you apply brakes a couple times. can also tell if its working right by pumping brakes a few times with engine off, apply the brakes then start the engine, pedal should drop a bit as the vacuum comes back
I'll try that procedure this week. Thanks for the info.
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