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Re: Windstar 98, 3.8 liter - whistles and missing power
In my experience, an engine whistle is a leak somewhere. I suspect a vacuum leak, even though you don't believe there to be one. Given that it isn't audible at all RPM ranges, it may be a chore to find.
I know the intake system on your '98 is different than my '00. Anyone with a '98 out there with hints on where the whistle might be coming from?
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2000 Windstar LX 3.8
1995 Contour GL 2.5
1986 Mustang GT 5.0 --> Sold, but missed on sunny days
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