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    #1

    SLOOOOOWWWW Start

    dad just picked a 88 325I vert dirt cheap, and dumped a bunch of cash into restoring it. it's got one last problem, slow start, not all the time, but most of it, it'll just crank and crank for about 10 seconds before it starts, we we're thinking it could be the fuel pump, but we are unsure, once it's started it runs like a top.

    any ideas, we were thinking it could be the pusher pump the one under the car but we're unsure, so before we spend hours scratching out heads, wondering if anyone else has any idea's
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    #2
    Sounds to me like the fpr, or fuel pump. Sounds like the fuel is draining back toward the tank, and it takes it a bit to pump back up. I'm not the expert, but I believe that 88's had only one internal pump.

    Sarcasm is a body's natural defense against stupid.
    When a man talks dirty to a woman, it's sexual harassment. When a woman talks dirty to a man, it's £3.95 per minute.
    "My mother never saw the irony in calling me a son-of-a-bitch." Jack Nicholson"
    Old age and treachery will always overcome youth and skill.

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      #3
      I get the same thing some times. Half the time it takes a few seconds to start the others it takes a good 5-10 seconds and I have to give it gas quick. Makes me sound like a ricer reving my engine

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        #4
        should also look at the fuel filter.
        No more e30s for me.
        88 black BMW OBDII 332is dedicated track [sold]
        88 BMW OBDII bronzit 332is [RIP 03/08]
        91 BMW 325i [sold]
        86 Corolla 'Ae86' HB 20v trd [sold]
        http://youtube.com/watch?v=pTj7Hn9v5Rs

        Comment

          #5
          do your cars have the cold start injector? its supposta give you an extra rich mixture for starting, does this only happen when the car is cold? because it could very well be the problem then

          edit: never mind duh-uh Motronic 1.1 doesnt have a cold start injector
          Last edited by Adrian_Visser; 07-25-2006, 10:13 AM.

          '89 Alpine S52 with goodies

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            #6
            I would say Fuel pressure regulator.

            Will
            RIP e30 (brilliantrot '91 325i) 11/17/06 Byebye: 8/21/07
            Welcome e30 (brilliantrot '90 325is) 12/23/06
            DaveCN = Old Man
            My signature picture was taken by ME! Not by anyone else!



            Originally posted by george graves
            If people keep quoting me in their sig, I'm going to burn this motherfucker down.

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              #7
              Originally posted by PeaveyBassist
              I would say Fuel pressure regulator.

              Will
              Either that or the check valve in the fuel pump.


              My fast says: traction control is for the faint of heart :evil:

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                #8
                Sounds like the Fuel Pressure Regulator to me. At least thats my guess :)

                Will
                RIP e30 (brilliantrot '91 325i) 11/17/06 Byebye: 8/21/07
                Welcome e30 (brilliantrot '90 325is) 12/23/06
                DaveCN = Old Man
                My signature picture was taken by ME! Not by anyone else!



                Originally posted by george graves
                If people keep quoting me in their sig, I'm going to burn this motherfucker down.

                Comment

                  #9
                  where is the FPR located, and beside/infront of the pump under the car there's a thing with wires attatched to it, WTF is that?

                  Comment

                    #10
                    fpr is on the fuel rail, if your on the driver side of the car its just to the left of the intake mani, got a vac hose running to the pass side of the intake mani and fuel line that goes out toward you
                    Your signature picture has been removed since it contained the Photobucket "upgrade your account" image.

                    Originally posted by TimKninja
                    Im more afraid of this thread turning into one of those classic R3v moments, where Pizza gets delivered.

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                      #11
                      100 % it is the Fuel pump. Had the same problem in my 88 325e. I would replace it with the fuel filter. While your in there inspect you sending unit as if the fuel pump has issues, the sending unit might as well.

                      Make sure you put in a new fuel pump gasket as well otherwise you might have a fuel draining problem at the top of your tank (found I had that problem last month :) )

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                        #12
                        also your model year has a fuel pump in the tank, not under the car. Make sure you are in a very well ventalated area when working on it as you will get dizzy :)

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                          #13
                          it has both dude, and they've both replaced with known good working units, and that did not help the problem one bit.

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                            #14
                            HMMMMM, Did you check your distributor cap and rotor for wear? I know that if the unit is old and has carbon tracks it can have a hard start.

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