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fuel/ oil help plz

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Old Feb 26, 2004 | 07:10 PM
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demegod999
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Unhappy fuel/ oil help plz

i have a 78 e150 with the 351 in it and my fuel pump went. ok eask enough, but now im showing no oil pressure on my stock guage. anyone have any ideas? where is the oil pressure sending unit located? i checked as many wires as i could but im at a complete loss here.
unless the guage stoped workin at the same time as my fuel pump shutting down, which i doubt....
help plz
 
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Old Feb 26, 2004 | 08:05 PM
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Did your old fuel pump fill the crankcase with gas? If it did the oil is so thin it won't show any pressure.
 
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Old Feb 26, 2004 | 08:31 PM
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no it didnt. i know that the fuel pump has nothing to do with the oil pressure, but i think maybe i hit a wire or the sending unit for the oil, im gonna get a aftermarket guage and install that i just need to know where the oil pressure unit is on the motor.
 
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Old Feb 26, 2004 | 09:18 PM
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The sending unit is at the back of the block behind the intake.
 
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Old Feb 26, 2004 | 09:21 PM
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Some can be located down by the fuel pump on the side of the block (302,351W,460) check there to make sure that it isn't there, but if it is, the wire could have been knocked off during the pump change.
Jimmy
 
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Old Feb 26, 2004 | 09:28 PM
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on my 79 F-150 351M its right behind the intake. mines a mechanical guage but I'd imagine the electrical one has a sending unit in that same spot. (I hate electrical anything)
 
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Old Feb 26, 2004 | 09:32 PM
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thx guys u have been a great help...
 
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