Ford Mustang Forum - View Single Post - 2012 Mustang GT/CS engine tick
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post #19 of (permalink) Old 06-30-2012
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heavyD's Avatar
Joined: Feb 2011
Location: Calgary
Posts: 1,403
Originally Posted by sho928 View Post
The filter internal bypass valve can have intermittent flutter if the pressure drop at the exit of filter is very close to 8-psi required to operate the fixed spring.
I would try an FL-820S filter which has the bypass valve set 16-psi to see if it makes a difference.
I use the Ford Racing CM-6731-FL820 filter and I get the tick.
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