Car stumbles under accel over 50 mph

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  • psloan
    R3V OG
    • Nov 2006
    • 9815
    #1

    Car stumbles under accel over 50 mph

    This problem just started today. Cruising it drives fine. hit the gas and it stumbles. Only at higher speeds. AFM? Fuel pump? fuel filter? Any ideas???

    TIA
    "We praise or find fault, depending on which of the two provides more opportunity for our powers of judgement to shine."
    Tags: None
    • jlevie
      R3V OG
      • Nov 2006
      • 13530
      #2
      It could be the AFM or the fuel system. A pressure & delivery test will tell if the fuel system is the cause.
      The car makes it possible, but the driver makes it happen.
      Jim Levie, Huntsville, AL

        Comment

        • psloan
          R3V OG
          • Nov 2006
          • 9815
          #3
          Originally posted by jlevie
          It could be the AFM or the fuel system. A pressure & delivery test will tell if the fuel system is the cause.
          Never done one of those before - how's it done?
          "We praise or find fault, depending on which of the two provides more opportunity for our powers of judgement to shine."

            Comment

            • jlevie
              R3V OG
              • Nov 2006
              • 13530
              #4
              I don't have a Bentley with me and the procedure is too long to remember. It is both a static pressure test and a test of delivery rate.
              The car makes it possible, but the driver makes it happen.
              Jim Levie, Huntsville, AL

                Comment

                • scabzzzz
                  Estado de mierda de encargo
                  • Jul 2007
                  • 6870
                  #5
                  PM'd you man!

                    Comment

                    • 92 mtechnic cabrio
                      Honesty is not the best policy!
                      • Dec 2003
                      • 4907
                      #6
                      How peculiar....a speed dependent incident...

                      Are you sure it's not a specific RPM in any gear?
                      R.I.P 07/01/09 - 04/23/10 :(

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