my engine is making a whinning sound on 1999 Ford F-150

When I crank my truck it makes a whinning sound constantly

by in Birmingham, AL on February 22, 2011
1 answer
ANSWER by on February 23, 2011
Not entirely sure what that is; could be resonance from the starter from internal wear, or an accessory drive noise perhaps? A first hand inspection is in order to see what you may be hearing.
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My engine is making a constant loud whinning sound the whole time I have it cranked.