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Fuel Pump Pulsator worth putting in?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by GaBnn3, Oct 25, 2005.

  1. GaBnn3

    GaBnn3 Registered Member

    Jan 2, 2005
    Likes Received:
    Holyoke, Ma.
    I bought a fuel pump pulsator as I was buying everything else along with a new tank. The LMC Truck catalog says this unit eliminates vibration and noise. The old sending unit assembly had a rubber coupling in place of the pulsator. Is it worthwhile putting the pulsator in, or should I leave it out? Thanks.
  2. dyeager535

    dyeager535 1 ton status Premium Member

    Dec 13, 2000
    Likes Received:
    Roy WA
    FWIW, my fuel pump is fairly noisy and I installed it as the original came out. Mines a higher pressure Cadillac one, but the noise level has been commented on by people who I didn't mention it to.

    I don't think it's loud inside the truck, but you can hear the higher pitched whine when you stand outside of the truck. Easy to tell if it's working when you turn the key though!

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