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85 6.9 vacuum pump shooting fuel out of it why

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Old 07-19-2014, 09:10 PM
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85 6.9 vacuum pump shooting fuel out of it why

Why is this happening
 
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Old 07-19-2014, 09:34 PM
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Where's the vacuum pump getting fuel from? There is no connection between the vacuum system and fuel system.
 
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Old 07-19-2014, 09:49 PM
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Sounds like fuel pump leaking.
 
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Old 07-19-2014, 10:46 PM
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^^^^^^ +1; fuel pump is on the side of the motor, near where the vac pump is. I'd start by checking those lines.
 
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Old 07-19-2014, 11:17 PM
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as they said, the vacuum pump is not connected to the fuel system in any way, so it cannot shoot out fuel unless someone did some funny plumbing and connected a vacuum line to fuel (highly unlikely).
the fuel lift pump is located nearby, and those CAN shoot fuel out when the fail. they can also shoot fuel into the crankcase and dilute your oil when they fail, which can cause serious engine damage. inspect this pump and the fuel lines coming off it - i'd be willing to bet that its either gone bad or there's a loose/damaged fuel line attached to it.
 
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Old 07-20-2014, 06:29 PM
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I figured out wat I did but not I'm not gitting any fuel to the motor Ill crank it then try to bleed it at the valve on the fulter but there's no presure
 
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