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Tech Forum : Dodgy Fuel Gague

- BMW E21 Community
   - Tech Forum
      - Dodgy Fuel Gague
  Posted Tuesday, Feb 6th 4:52am [Edit] [Quote] [IMS] [View car]

Post nr. 51


Hi guys, just a quick enqiry. Every time i turn my car on "on" the fuel gague measures the amount of fuel that is in the tank, okay, fine. But when i turn it over and i can hear the fuel pump pumping the gague drops a little. WHATS HAPPENING?!?

I filled the car up from a 1/4 (what the gague read when car is not turned over) and I put in 30 litres so i'm guessing that the gague is right when the car is not turned over and not pumping fuel...

  Posted Wednesday, Feb 7th 4:27pm [Edit] [Quote] [IMS] [View car]

Post nr. 1007


probably a bad electrical connection- there are a number of connections that can be cleaned, this may help. My boss said they used to use a pen eraser on the eletrical contacts for the instrument cluster.

jamie

  Posted Thursday, Feb 8th 12:07am [Edit] [Quote] [IMS] [View car]

Post nr. 51


pen eraser...there is such thing as a pen eraser?? do you mean like a vinal pencil eraser you get for 30c at your local newsagency??

thanks for your help Jamie

  Posted Thursday, Feb 8th 12:37am [Edit] [Quote] [IMS] [View car]

Post nr. 159


You can get them, they usually have a soft bit on one end for pencil, then the other end is for ink, they have some sort of rubbing grit in them. What you want is a ink eraser. Art shops have them. They work really well for cleaning electrical contacts.

  Posted Thursday, Feb 8th 2:13am [Edit] [Quote] [IMS] [View car]

Post nr. 470


For computers, I use a regular old pencil eraser. It has worked effectively (also effective in eliciting awkward looks from bystanders, like my brother). I imagine it cannot be much different to the leads in the car. Bottome line, try a pencil eraser first since you probably already have some laying around. Just be sure it's clean before you start!!!!


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