Question about 1998 Cadillac DeVille
If you do not want to replace the sending unit in the tank,you could install a variable resistor in series with the wire from the fuel sender unit and adjust it to reflect the proper level.
Posted on Jul 18, 2009
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Posted on Jan 02, 2017
SOURCE: fuel gauge
there is a sending unit in the tank this has probably clogged or wore out it has a filter on it, with gas debries this will make your guages stop working correctly
replace sending unit by dropping tank with gas out of tank and then pull out sending unit replace with new one
Posted on May 21, 2008
SOURCE: fuel gauge is not reading
to the right , i am assuming to the "full tank" reading. am i right?
if i am right, the wire from the gas tank is sending a full tank signal what ever the content of the tank.
meaning the wire is shorted to ground.
or the sending unit is faulty. there is a short to ground reading between the sending unit.
you can test which one is faulty. remove the wire from the sending unit. observe the gauge. if the gauge would go to " empty" then the culprit is the sending unit. if it stays on " full tank", then the wire is faulty.
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tnx 4 using fixya,
Posted on Sep 23, 2008
You can try to clean the ground behind the instrument cluster to see if that helps but most likely the sending unit has gone bad in the gas tank.
Posted on Aug 18, 2009
sounds like you probably need a fuel level sender. it's located in the trunk on the right hand side attached to the fuel pump. I got one on ebay for about 20.00, but you might as well replace the fuel pump while you're at it, as it can go bad with time.
Posted on Aug 31, 2009
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