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Thread: Walbro 255 Fuel Pump Noise

  1. #1
    turbo addict boost geek's Avatar
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    Walbro 255 Fuel Pump Noise

    Is it normal for a new Walbro 255 lph fuel pump to constantly make a high pitch sound?
    The pump I took out of the car was also a Walbro but was a little smaller, and never made any noise. Just wondering if this is normal...
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  2. #2
    Moderator Turbo Mopar Staff Force Fed Mopar's Avatar
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    Re: Walbro 255 Fuel Pump Noise

    I doubt it. I have one in my car and I never hear it when the car is running.

  3. #3
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    Re: Walbro 255 Fuel Pump Noise

    Is the fuel filter new?

    Did you make sure the pump has all the rubber isolators on it so it doesn't touch any metal?

    Disconnect the return line and see if the noise goes away-if it does, you need a larger return line or yours is plugged.

    Check the voltage to the pump.
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  4. #4
    turbo addict boost geek's Avatar
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    Re: Walbro 255 Fuel Pump Noise

    Brand new fuel filter. When it first ran it blew a 20 amp fuse near the battery. I put a 30 amp in, been driving it for a week now. The pump is mounted in the original rubber sleeve, was kinda tight, didn't realize till I was done that it came with it's own rubber sleeve. Duh....
    [SIGPIC][/SIGPIC]stock rebushedT2 rods
    big valve G head

    1 ya,IIM still aliveI need an auto tranny
    i

  5. #5
    turbo addict
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    Re: Walbro 255 Fuel Pump Noise

    They don't call them WhineBro's for nothing My 255 is loud. my 190 isn't. Well the 190 car probably has more insualtion back there but I don't hear it outside the car. It should be fine.

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