Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - View Single Post - Engine vibration NOT mounts
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Old 11-18-2012, 03:55 PM   #3
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What's the idle Rpm? And does it stay stable when you shift or turn on the A/C?

PCV hoses have been known to go bad, improved version currently sold by Ford if needed.

Just a couple thoughts if the idle is too low or rough...
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