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loud blowing noise?
we just bought a '99 powerstroke yesterday (ran and sounded good). well today it still runs good but if you get it to about 1.5-2 on the tach. it makes a realy loud blowing noise and dad thinks it's bad, so my question is it bad.
once you let off the acc. and the tach gets under 1.5 it sounds like it had sucked something up and it down't do it. (It sounds like a jet taking off) I NEED HELP PLEASE
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