Fuel gauge

2000 CADILLAC ELDORADO
79,000 MILES • V8 • FWD • AUTOMATIC
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GLAKKEN13
  • MEMBER
  • 33 POSTS
When I park my car facing downward in my drive way ...front end 1st... if I have less than a 1/4 tank of gas the sensor tells me I am low on fuel and only registers empty. Then when I pull out and drive for a while the gas gauge goes back up to around 1/4 or more. Wasn't able to start car today as a result of this. Is the fuel sensor in the back of the tank? Could this be a reason for this problem? I went and got gas in a can and filled the tank with 5 gallons. When I started the car and drove it to the station to get more gas it registered almost half a tank.. What gives?
Feb 22, 2011 at 9:43 PM
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WRENCHTECH
  • ASE Certified Mechanic
  • 20,761 POSTS
  • ASE Certified Mechanic
You're running it too low and you are going to ruin your fuel pump that way. Keep more fuel in it.
Feb 22, 2011 at 10:20 PM
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GLAKKEN13
  • MEMBER
  • 33 POSTS
ok, Thanks. I usually keep it at least 1/2 full... just let it get low recently.
Feb 23, 2011 at 4:19 AM
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CADIEMAN
  • ASE Certified Mechanic
  • 3,544 POSTS
  • ASE Certified Mechanic
u need a sending unit in the tank
Feb 25, 2011 at 8:28 PM
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