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    #1

    Fuel pump problem/questions

    My fuel pump is beginning to make "the noises". I know replacement is in order, so I did some searching but really haven't come up with much on the subject. I have seen some mention of aftermarket pumps for less money, or for other reasons (turbo setups, etc.).

    Should I stick with OEM fuel pump, go with something aftermarket, and if so, explain why please?

    How difficult a job is it, and any advice or tips on how to make it go smoothly or other things that need to be done while into this.

    Thanks


    [THE 501 club - Founding Member]
    Tags: None
    #2
    I would just go with a stock pump. The fuel pump job is not bad at all.

    '87 325 (Track Rat)
    '04 C5500 Wrecker (Work)
    '94 525i (Daily)
    '90 325i (R.I.P)
    H&R Race, Racing Dynamics Sway Bars, Tree House CAB's, Sparco Strut Bars and more.

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      #3
      So no tips? Just really straightforward then, nothing to watch out for or do additionally while doing this job? Hose replacements or anything?


      [THE 501 club - Founding Member]

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        #4
        I would stick with OEM. and disconnect your battery (you probably already know that). how many miles are on your pump? mine is still fine at 175k but I'm not sure how much longer I will trust it.
        Build thread

        Bimmerlabs

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          #5
          107K miles on the car, but it's starting that whine that they are notorious for, so I figure it must be time. ?


          [THE 501 club - Founding Member]

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            #6
            i recently replaced both fuel pumps in my car (in-tank and on the frame). i bought new bosch units as they should be good for 10+ years. do you have one pump on the frame rail?

            a few things to watch out for:
            the factory used these annoying banded hose clamps. you'll need strong hands and diagonal cutters to get them off. replace with good hose clamps
            watch for aging fuel hoses. replace any that are questionable.
            it helps to wait awhile after running the car to let the fuel pressure subside. i didn't and sprayed fuel all over the place.
            replace the fuel filter at the same time
            remove the ground cable from the battery and be prepared with lots of rags
            it would be wise to find bolts or something of the right size to jam into the fuel hoses to prevent any extra spillage
            James
            '88 M3

            Comment

              #7
              Pull the fuel pump relay fuse, start car. Wait for it do die. Presto, no fuel in lines.


              Keep it slideways!!

              Comment

                #8
                Originally posted by Axxe
                Pull the fuel pump relay fuse, start car. Wait for it do die. Presto, no fuel in lines.
                ok, mr. smartypants. you COULD do that too :D
                James
                '88 M3

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