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Thread: GM fuel pump modules

  1. #1
    Senior Member
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    GM fuel pump modules

    After my recent problem with my fuel pump I知 considering using a readily available GM unit. I know there are several members using them. My question is: has anyone found a GM fuel pump module (pump and sender) that requires little to no modification to work? IE correct size for the fuel tank opening, correct pressure, flow, etc. I知 not worried about fuel sender accuracy.

  2. #2
    Senior Member Patrick C's Avatar
    Join Date:  May 2011

    Location:  Northern Michigan

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    When my DMCH all-in-one pump stopped putting out enough pressure last summer, I installed this one:

    Spectra Premium SP6170M Fuel Pump Module for Chevrolet/GMC https://www.amazon.com/dp/B000IYQJUS..._3c2SCbDDESEHD

    It did need to have the black fuel pressure sensor on the top removed (pops off) and plugged with a bolt, and I filed down the tabs around where that sensor was. I also had to trim the plastic tab off the side of the pump. I am using Hervey’s fuel sender now, as the float was reversed on this one.
    Patrick C.
    VIN 1880
    Modifications done to my car can be seen in this video: https://youtu.be/ncMjW2pI2e4

  3. #3
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    Quote Originally Posted by Patrick C View Post
    When my DMCH all-in-one pump stopped putting out enough pressure last summer, I installed this one:

    Spectra Premium SP6170M Fuel Pump Module for Chevrolet/GMC https://www.amazon.com/dp/B000IYQJUS..._3c2SCbDDESEHD

    It did need to have the black fuel pressure sensor on the top removed (pops off) and plugged with a bolt, and I filed down the tabs around where that sensor was. I also had to trim the plastic tab off the side of the pump. I am using Hervey痴 fuel sender now, as the float was reversed on this one.
    Good stuff, thank you. FYI I did a little digging and found out that SP6149M is the same pump minus the pressure sensor.

  4. #4
    Senior Member Patrick C's Avatar
    Join Date:  May 2011

    Location:  Northern Michigan

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    Quote Originally Posted by CFI View Post
    Good stuff, thank you. FYI I did a little digging and found out that SP6149M is the same pump minus the pressure sensor.
    Nice find. From the photos in the listing below, it still looks like you would need to file away the plastic tabs where the sensor would have been, if you want the infill panel to seat over it.

    Spectra Premium SP6149M Fuel Pump Module for Chevrolet/GMC https://www.amazon.com/dp/B000C7W3CE..._Ao5SCbNK9YX4K
    Patrick C.
    VIN 1880
    Modifications done to my car can be seen in this video: https://youtu.be/ncMjW2pI2e4

  5. #5
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    Quote Originally Posted by Patrick C View Post
    Nice find. From the photos in the listing below, it still looks like you would need to file away the plastic tabs where the sensor would have been, if you want the infill panel to seat over it.

    Spectra Premium SP6149M Fuel Pump Module for Chevrolet/GMC https://www.amazon.com/dp/B000C7W3CE..._Ao5SCbNK9YX4K
    Yes I did notice that. Too bad, I was hoping the tabs wouldn稚 be there. I知 leaning towards a Delphi unit, FG0089. Advance Auto has them. I really like the idea of picking one up locally for warranty purposes.

  6. #6
    Senior Member Patrick C's Avatar
    Join Date:  May 2011

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    Quote Originally Posted by CFI View Post
    I知 leaning towards a Delphi unit, FG0089. Advance Auto has them. I really like the idea of picking one up locally for warranty purposes.
    It looks like that is only rated for 62 psi though.

    https://www.carid.com/delphi/oe-fuel...pn-fg0089.html
    Patrick C.
    VIN 1880
    Modifications done to my car can be seen in this video: https://youtu.be/ncMjW2pI2e4

  7. #7
    Senior Member Bitsyncmaster's Avatar
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    Quote Originally Posted by Patrick C View Post
    It looks like that is only rated for 62 psi though.

    https://www.carid.com/delphi/oe-fuel...pn-fg0089.html
    Funny it says max pressure is 109 PSI. I'm guessing the 32 GPH is at the 62 PSI.
    Dave M vin 03572
    http://dm-eng.weebly.com/

  8. #8
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    Quote Originally Posted by Bitsyncmaster View Post
    Funny it says max pressure is 109 PSI. I'm guessing the 32 GPH is at the 62 PSI.
    Will the PPR bump this up?

  9. #9
    Senior Member Chris 16409's Avatar
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    I have been using the AC Delco MU1777. You can get it at AutoZone for about $170. It has a lifetime warranty. It's also made in Mexico (usually) which is better than China. It has been working good.

    https://www.autozone.com/external-en...rchText=mu1777
    Chris Miles

    For Better or Worse I own a DeLorean!
    1983 Grey Manual, VIN #16409, Fresno, California

  10. #10
    Senior Member Patrick C's Avatar
    Join Date:  May 2011

    Location:  Northern Michigan

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    Quote Originally Posted by Bitsyncmaster View Post
    Funny it says max pressure is 109 PSI. I'm guessing the 32 GPH is at the 62 PSI.
    Interesting. The SP6170M pump I am running is minimum 72.5 psi and maximum 130.5.
    Patrick C.
    VIN 1880
    Modifications done to my car can be seen in this video: https://youtu.be/ncMjW2pI2e4

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