FUEL PUMP VOLTAGE

2002 Dodge Ram

Tiny

mwilds

November, 3, 2009 AT 2:49 PM

Electrical problem
2002 Dodge Ram V8 Four Wheel Drive Automatic 124000 miles

I have a 2002 Dodge Ram 1500 pick-up truck. One day it just quit running. I could get it to run for about 10 minutes then it would die. Now I can not even get it to start. I have spark. I have found that at the fuel pump, when I first turn the key on, I get 12 volts to the fuel pump but then it drops right out. My question is, does the pump have a constant 12 volts to it, or is there something along the way that turns the pump on and off. I have checked the fuses and the relay and all that is good.

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Tiny

Docfixit

November, 3, 2009 AT 3:18 PM

Has fuel pressure been checked when key is on? Does pump relay fall out after key on when voltage drops to pump? PCM provides ground to pull relay in

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