Originally Posted by 91calais_owner
New to the site and need help. I have a 1991 Oldsmobile Cutlass Calais sedan It has the 2.5L motor and auto trans. Anyways the gas gauge on my car is not correct, when you fill it up all the way the needle goes past full, and half tank is empty so have to fill it up at half. For a little while now it has been going through 20-40 bucks in gas a day. The gas gauge also floats when you give it gas. Oh and if this helps ive only ran out of gas twice and each time when I ran out, my car just shut off completely no warning. Any suggestions on what to check and stuff will help.
Sounds like you have a faulty sender in the tank.
What kind of mpg are you getting?, if your mileage sucks you need to go through a tune up and fault finding procedure.
When the tank is empty the pump will shut off to prevent damage, hence the sudden cutting out unlike a carburettor engine which will falter a little as the carb drains.