89 F-150 4.9 vacuum leak
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05-31-2004, 08:56 AM
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89 F-150 4.9 vacuum leak
Hello again
I'm guessing I have a vacuum leak but don't know where. Maybe someone can help. There is a whistling noise that goes away when I increase the RPM's. I have gone as far as removing the air intake hoses to the throttle body and closing it off with my hand. The engine still runs and still whistels.
What's the deal?
Big Daddy 51
I'm guessing I have a vacuum leak but don't know where. Maybe someone can help. There is a whistling noise that goes away when I increase the RPM's. I have gone as far as removing the air intake hoses to the throttle body and closing it off with my hand. The engine still runs and still whistels.
What's the deal?
Big Daddy 51
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