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HELP! 1997 B2500 Van no power to fuel pump

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  #11  
Old 07-30-2017, 12:03 AM
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Originally Posted by johngerding
......does it have a safety that prevents the pump from turning on if the tank is empty?
Dunno. You might wanna' get a factory manual and see what it states. Here at FAXON:

http://www.faxonautoliterature.com/Search.aspx?c=128180
 
  #12  
Old 07-30-2017, 12:05 AM
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I have not tested the ground at the pump with a multi meter yet and that is one thing I will be doing tomorrow... So far I have tried a new fuel pump, crankshaft sensor, and tested all fuses and relays for positive power, I have power at the pump and power at the crankshaft sensor, The van starts and runs when starter fluid is sprayed into the intake, no codes were pulled by the onboard diagnostics other then battery has been recently disconnected. I have not tested the old pump by connecting it direct to battery yet so that is another step I will take... Its looking like either a bad ground somewhere or possibly both fuel pumps were dead. any other suggestions are welcome, thanks for the help.
 
  #13  
Old 07-30-2017, 12:27 AM
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Is there a fuel pump RELAY that needs to be tested??
 
  #14  
Old 07-30-2017, 12:30 PM
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So this morning I ran wires from the car battery with the pump in hand and got it to spin, so the pump is functional, however the pins that made the pump spin are in opposite corners of the pins that show power at the female harness... So something is telling the fuel pump not to run.... I just dont know what....
 
  #15  
Old 07-30-2017, 04:37 PM
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Reinstalled the fuel tank, put gas in it and swapped the ECM for a reman from autozone and still nothing.... I have eliminated all the usual suspects at this point....
 
  #16  
Old 07-31-2017, 08:58 AM
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You said you had power going to the fuel pump relay. Are you talking about the coil wires or the power contacts? Power to the contacts AND power coming out of the contacts?
 




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