Fueling & Injection Fuel Pumps | Injectors | Rails | Regulators | Tanks

Walbro 340 intank....

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Old Jul 2, 2003 | 04:12 PM
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Default Walbro 340 intank....

Am I supposed to hear a buzzing noise from the fuel pump in the tank? It sounds like a damn inline buzz, but other people I know with the same pump said it's as quite as stock. What do you other walbro 340 people hear?
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Old Jul 2, 2003 | 04:17 PM
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Default Re: Walbro 340 intank....

On a side note, fuel pressure is fine (around 61 psi) and everything else in the fuel system is stock right now.
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Old Jul 2, 2003 | 04:18 PM
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Default Re: Walbro 340 intank....

Also, the buzzing noise goes up and down with the voltage of the car so it's using the stock wiring...I didn't install it so I'm kinda worried.
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Old Jul 2, 2003 | 05:23 PM
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Default Re: Walbro 340 intank....

Yes, thats the way the pump works. I never heard it till I finally cutoff my radio, windows up, ac of, and interior out prepping for Rollbar install. Then I noticed it....It is normal.

Charlie.
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Old Jul 3, 2003 | 07:05 AM
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Default Re: Walbro 340 intank....

yup heard that too.its normal.
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Old Jul 14, 2003 | 04:17 PM
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Default Re: Walbro 340 intank....

yep....I usually only hear it when I first turn the key on....after the engine is running I cant hear anything....
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Old Jul 15, 2003 | 11:58 AM
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Default Re: Walbro 340 intank....

must have not put the rubber insulator around it. (extra fuel hose was my insulator)
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Old Jul 17, 2003 | 02:53 PM
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Default Re: Walbro 340 intank....

That's probably it, oh well it's coming out again because the plans now call for dualie walbros. Hey Dave, peeps say you ran 8AN hose directly to your pumps (with a Y-adapter I assume) did you just cut holes in the top piece and run the hose through or what?

Thanks,
Rob
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