Thread: N20 engine noise on "cold" start
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      07-25-2012, 01:22 PM   #15
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Quote:
Originally Posted by r3dbimmer89 View Post
It's due to direct injection
I have owned quite a few cars with direct injection, the F30 is by far the worst sounding of them all. I am not so sure its not piston slap like the old GM and Toyota engines.
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