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Thread: Noisy in-tank pump

  1. #1
    Fuel Injected!
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    Noisy in-tank pump

    Finally finished installing new tank, sender and in-tank pump for my 7747 setup. Previously I had an external pump. On the first try, I listened really closely as I turned the key, thinking I'd barely be able to hear the pump, but it's actually very loud. It's like it's resonating against sheet metal or something. This is for a K5 Blazer with no carpet or sound deadening of any kind. The engine runs fine. Should I be worried? I did notice the filler neck on the tank contacts the body, which could be part of it.

  2. #2
    RIP EagleMark's Avatar
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    I know the Carter is louder intank...

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
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  3. #3
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    Quote Originally Posted by EagleMark View Post
    I know the Carter is louder intank...
    That's what I have. I also had a Carter in-line and you could hear it whine. This one sort of rumbles. I think it's okay though... I put my ear up to the tank and I don't hear any metal on metal or anything. I'm guessing the tank just resonates against the body a little.

  4. #4
    Fuel Injected! PJG1173's Avatar
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    no worrys mine is loud too.
    87 4Runner, 15" spring lift, 3" body, chevy vortec 355, 5.29 gears, 38.5x15.5x15" Boggers, 280hr, 16168625 running $0D
    93 S10, 36x12.5x15 TSL's, custom turbo headers, 266HR cam, p&p vortec heads, $0D Marine MPFI with 8psi boost.
    05 Silverado, 2' lift, 4" exhaust, Bully Dog programmer,

  5. #5
    RIP EagleMark's Avatar
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    They are actually a better pump but do make more noise. Did you fill the tank yet? Mine was hardly noticble over exhaust till I got to 1/8th tank...

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
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  6. #6
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    Just 5 gallons in so far, so I expect it'll get quieter when full. I can't hear it with the engine running either, just when I turn the key prior to start it rumbles. I guess it's all okay. People talk about how in-line pumps are noisy, so I expected this to be quieter. Oh well, I don't care as long as it's working right.

  7. #7
    RIP EagleMark's Avatar
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    I think your fine and will be only one to notice with more gas...

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
    -= =-

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