trying to hook up an external fuel pump need help - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 07-06-2002, 11:04 AM
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trying to hook up an external fuel pump need help

anyone running an external pump on a 4.0? Im looking to find out what brand to go with and what will be needed? pressure regulator, how much psi(does the pump have a default psi that will work and if soo what pump?)..
thanks in advance
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post #2 of (permalink) Old 07-06-2002, 02:15 PM
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Re: trying to hook up an external fuel pump need help

I used an external fuel pump when I did the 4.0 swap. I bought it from Hesco. The engine had the presure regulator built on the fuel rail. Its a 1994 4.0. Not sure about the default stuff, but it runs high pressure I believe around 30-40lbs. Hope that helps.
post #3 of (permalink) Old 08-03-2002, 08:26 AM
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Re: trying to hook up an external fuel pump need help

Sure does, Thanks a million [img]images/icons/smile.gif[/img]
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post #4 of (permalink) Old 08-03-2002, 09:25 AM
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Re: trying to hook up an external fuel pump need help

These are the part numbers that HESCO told me to try when I put my MPI together. AC/Delco #ep286 or Mopar performance #p5007150. The pump needs to be able to run from 35 - 42 psi for a YJ.
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