Focus Fanatics - View Single Post - Symptoms of a valve seat about to drop?
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Old 02-07-2013, 10:47 PM   #16
Focus Jr. Enthusiast
Join Date: Jan 2013
Fan#: 109288
Location: Springfield, MO
What I Drive: 2006 Pitch Black ZX4 ST

Posts: 25
FF Reputation: 1 GUM85 Good Standing Member
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I looked the engine over and over and over again for vacuum leaks but couldn't find any. I even tried spraying carb cleaner around the intake manifold and all vacuum lines. The intake manifold gasket does look like it's starting to flake apart though. I figured the carb cleaner would have narrowed down a leak but nada.
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