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no power to fuel pump

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Old Nov 13, 2010 | 02:18 PM
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Default no power to fuel pump
i have power every where else but none to my fuelpump what could be wrong?
 
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Old Nov 13, 2010 | 02:24 PM
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Did you check fuel pump relay, fuses and ASD relay. You can swap relays from the horn for instance.


Edit, and how do you know you have no power to the pump?
 
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Old Nov 13, 2010 | 02:32 PM
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yes they all have power to them
 
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Old Nov 13, 2010 | 02:36 PM
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just no power from under hood to fuel pump
 
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Old Nov 13, 2010 | 03:16 PM
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If the engine isn't running, you will only get power there for a few seconds when the key is initially turned on. Otherwise, PCM shuts it off.
 
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Old Nov 13, 2010 | 03:34 PM
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can i run a hot wire right to the fuel pump?
 
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Old Nov 13, 2010 | 03:43 PM
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A better and safer plan would be to trace the wires and check with an ohm meter.
 
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Old Nov 13, 2010 | 04:00 PM
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Down load this and trace the wires, just because a fuse or relay has power going to it, does not mean there is power coming out of it. https://dodgeforum.com/forum/2nd-gen...-gen-rams.html
 
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Old Nov 13, 2010 | 10:15 PM
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thanks guys fixed the trouble sencer over flywheel wire was broke
 
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Old Nov 14, 2010 | 09:48 AM
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that would be the crank position sensor. when it doesn't read that the engine is running, it triggers an ASD shutdown, which cuts power to the fuel pump.
 
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