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No fuel pressure after replacing fuel pump

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  • No fuel pressure after replacing fuel pump

    This thing is going to drive me up the wall

    2000 CSVT 98k. Purchased not running, found no fuel pressure and fuel pump not operating so the tank was dropped and a new pump was put into the existing assembly. Filter replaced as well. Car will run now but is choked, little to no fuel pressure. Pump audibly runs. Before I drop the tank and buy a Motorcraft assembly I want to make damn sure that I have covered my bases. So I've confirmed:

    1. Little to no fuel pressure at fuel rail
    2. Little to no fuel pressure coming into the fuel filter

    Anyone experienced with these vehicles please chime in because it's been a week of wanting to burn this vehicle attempting to get it back running again.

  • #2
    You can get to the fuel pump from the top. You just need to remove the rear seat, and the opening needs a little "trimming" to allow full access. Most people simply bend the sheet metal back and seal the area with many different methods.

    Now for your symptoms, maybe the check valve is stuck closed? Was E85 gas used - maybe the rubber hoses are collapsing and preventing the pump from flowing...
    The new assembly does replace the check valve, and I would consider the mid range assembly on Rock Auto vs the Motorcraft option just to save a few $$$$
    2k SVTC - Black / Praire Tan, blu_fuz ported 3.0L, 58k motor, 118k chassis


    • #3
      E85 was not used in this vehicle as far as I know. It was sitting for a few months and the owner had indicated he had pulled lean codes and had trouble starting. I was foolish to have just replaced the canister because I hear a pump moving albeit minus any pressure reading at the inlet of the fuel filter

      My techs are arrogantly wanting to drop the entire tank again.


      • #4
        Happy to report that by replacing the entire fuel pump assembly, the issue was corrected:

        The lesson here is to not skimp by and replace only the cartridge


        • #5
          Good to hear it's running again.
          A good thing to add to your list is to pull the back seat and very carefully inspect the fuel pump module electrical connector, the pins and sockets are known to be a little undersized for the pump motor current they have to handle, and occasionally we see browned or burned connector bodies and evidence of overheated connector pins. This will cause intermittent fuel pump issues and drive you nuts.
          I collect Ford's Red-headed step children.
          1985 SVO Mustang (turbocharged track rat)
          1989 Taurus SHO (supercharged track rat)
          1999 SVT Contour (Sedanus-Grocerygetter-Rapidus)
          2008 Mercury Milan Premier (Comfy boat)


          • #6
            Glad you got it going! Hope the car treats you well from here on out.
            2k SVTC - Black / Praire Tan, blu_fuz ported 3.0L, 58k motor, 118k chassis



            • #7
              All is fine with the vehicle. there were some lean codes that sorted themselves out after 100 miles and a good fuel additive and I replaced the dpfe to take care of the EGR code.