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Old 12-23-2012, 01:50 PM   #4
Focus Rookie
Join Date: Dec 2012
Fan#: 107633
Location: Bo'ness, Falkirk., United Kingdom
What I Drive: 2006 focus st3 performance blue

Posts: 6
FF Reputation: 1 korkyst3 Good Standing Member
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poss bering noise

Hi Guy's just joined so 1st things first, Hello to you all. Right i have a focus
st3 and have developed a kinda whirring noise from the engine almost like something is dry. I have had the engine rebuilt 10000 miles ago, in that i had RS pistons and con rods fitted along with a full Mongoose de-cat RS injectors and a 330 Jamsport re-map also it has a K&N panel flter for now. Now performance wise i have no complaints the boost gauge sits in the red through every gear not that it gets hammered all the time. However this noise seems to be worse at about 2000 revs and it stops when the engine shuts down it kinda slows down the whistle or whirring as the engine stops, a couple of seconds max. All levels are good, any help would be very much appreciated. Thanks guy's
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