Buzzing under back seat Type 44

[Charlie Smith]

Earlier, Adam Jansen wrote:
>
> Greetings fellow listers-
>
> Ever since I bought my 87 5KCSQ there has been a low buzzing under
> the back seat (outside car).   What is causing that?  Is it the fuel
> pump?  Should it making that much noise?

Fuel pump.  Yes.  And a big NO.

>
> Reason I ask is that for the third time in a week that buzzing
> sound changed pitch (got higher and MUCH louder) and then the car
> started running really rough, like it was starved for gas.  If I
> turn the car off and back on, it runs fine...

Right at the moment.


> Do I need to replace my fuel pump??

Yes.  Suggest you do it while you can choose the convenient place
to do it.  Not in some small garage in Timbuktu or BFE.

You access this from the trunk, way at the front of the trunk under the
carpet is a 5" diameter plate, that has to be rotated to unlock it.  The
fuel lines and electric connections go through this as I recall.

Unlatch the cover and as you lift it up you will pull the fuel pump out
of the gas tank.  When you put it all back together, make sure you *really*
get the cover plate twisted enough to fully latch it in place.  This is the
hardest part of the whole operation.

    - Charlie


  Charlie Smith   charlie at elektro.cmhnet.org  614-471-1418
  http://www.elektro.com/~charlie      Columbus Ohio   USA
  http://www.elektro.com/~audi     photos & technical info

  95 S6 Quattro  -  24 PSI, RS2 6 speed, and other features
  96 Dodge Ram   -  30 PSI, w/Cummins turbo diesel