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Fuel control valve Question

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Old Jul 14, 2007 | 06:59 PM
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vaman4215
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Fuel control valve Question

Got an 88 F150 with the 4.9L 6 cylinder that I'm parting out...A local guy wants the fuel control valve off it, no problem pulled it this morning...Got t o noticing though, all it is is a valve with 6 fuel lines hooked to it, the fuel pump was mounted about a foot towards the engine also on the frame..My quesion is since no electrical connections to the valve, how does it switch from front to rear tanks????? Something has to switch it....
 
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Old Jul 14, 2007 | 07:15 PM
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Phillip Guidry's Avatar
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The pressure from the in-tank pumps moves the spool valves over to the selected tank....provided the in-tank pump works and the spool valves are not stuck in one position.....
 
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Old Jul 14, 2007 | 07:15 PM
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From: Easton,Ks
Originally Posted by vaman4215
Got an 88 F150 with the 4.9L 6 cylinder that I'm parting out...A local guy wants the fuel control valve off it, no problem pulled it this morning...Got t o noticing though, all it is is a valve with 6 fuel lines hooked to it, the fuel pump was mounted about a foot towards the engine also on the frame..My quesion is since no electrical connections to the valve, how does it switch from front to rear tanks????? Something has to switch it....
Low pressure fuel from the selected fuel tank.
 
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Old Jul 14, 2007 | 07:36 PM
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vaman4215
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So essentially you have 3 fuel pumps in a dual tank setup then??? The low pressure pumps in the tank and then the high pressure pump that is frame mounted?? When you slect front to rear tank, that turns on or off the front or rear pump, and the high pressure pump runs all the time....I see now, makes sense....
 
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