1998 Mercedes Benz S320

Tiny
LINDABUTE
  • MEMBER
  • 1998 MERCEDES BENZ S320
1998 Mercedes Benz S320 70000 miles

why does the fuel pump on my vehicle make a buzzing sound when the gas goes low
Tuesday, May 18th, 2010 AT 5:22 PM

1 Reply

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Hi there,

often if the fuel is very low it will become aerated this is the noise you are hearing, keep the tank at least 1/4 full as a min, this way you will not over heat the pump.

Mark (mhpautos)
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Tuesday, May 18th, 2010 AT 5:34 PM

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