Had to have my pipes bypassed!

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Chally
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Good to hear you are on the mend.

The buzzing sound, is it your radio aerial motor?The fuel pump is about centre of the rear seats, so the only other thing I can think of is the radio aerial motor.

Anyone else???


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Mayhem_J30
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Z,I'm putting a copy of this in the tech section for ya.

Glad you're OK!

DAEDALUS
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Hi Z, glad your recovery is going well. Make certain the radio is off, or it could be a bad speaker making the buzz. I assume the pump has a timer, so perhaps that has gone bad. That's not a common problem as far as I know, so I would expect something else is going on, except that there aren't many possibilities. If you can, have a friend turn the key while you stand next to the open trunk so you can listen around for the source of the noise.

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Q451990
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Glad to hear you're feeling better! The fuel pump noise will be most obvious at idle with a low fuel level in the tank. If you fill up and can't tell the difference, I'd say it's something else. Does the noise change with engine speed, like an exhaust resonance?

I can't think of anything else that would make a noise back there with the car stopped except the exhaust, fuel pump, or an amp.

Heath

Heath

911/Q45
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The fuel pump will buzz while the engine is running, it doesn't run intermittently. I don't have a good measure for how much buzz is too much.

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szh
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Hi, all.

Based on the comments, I have tried a few things so far. When I first just turn the key to the on position, I do get the fuel pump start up and go off soon - just as I would expect it to do (to pressurize). But when I start the engine, I still hear a faint low buzzing sound that I do not seem to remember from before. It is not the radio antenna - I turned the radio off based on Chally's thought and I still got the low buzz. Next step will be to get somebody else to turn on the engine outside my garage - I think the engine noise is masking the sound too much to be locatable.

I am still leaning towards a failing fuel pump as being the culprit. Not sure, though, so I will have the local Infinit dealer check it out when I am able to drive there, if I cannot figure out otherwise.

Thanks, folks, for all the good thoughts and wishes about my recovery. It is happening, albeit slowly. I feel good to be alive! :)

Z

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szh
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Unfortunately, no longer a Nissan or Infiniti, but continuing here at NICO!
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Hi, all.

I have not participated in a while here ... had to have my pipes worked on (four unexpected cardiac bypasses!), but I am recovering gracefully from this! Been lurking for a few days, but finally posting something I need to know about for my 95 Q.

My question has to do with a low, buzzing sound from the left rear seat area (I have not tried to locate it exactly yet). It doesn't go away after a few seconds after the key turn (like the fuel pump normally does), so I am assuming that the fuel pump is on its way out. Is that a good assumption in this case? Any other possibilities that might be causing this kind of buzzing?

Z

greg_atlanta
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Car: 2008 G35 Journey Sedan, silver/black (no sunroof), 1992 Q45 (in a past life)

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Have your heart surgeon install a new fuel pump. Should do a good job pumping blood... but might need to install a FPCU too.

Perhaps Dennis can advise.

VimyJ
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Joined: Wed Jul 24, 2002 6:09 pm

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The title of your post led me to believe that you had a difficult and sophisticated proceedure performed. Like replacing hoses under the Q's plenum. ;) You'll feel like a new man in no time. Sneezing and/or coughing was the hard part according to my dad. Take care. :)

landtodd
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Be sure to read thread "How much Buzz?" in this section today.

Welcome back! Wishing you a fast recovery!


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