Q: Fuel Gage

asked by on April 13, 2017

I have a 2000 GMC truck, when I start it my low fuel light is on and the gas gage shows empty. After I drive it a few miles the light goes off and the gas gage goes up. When I stop and put it in park the low fuel light comes back on. After I drive a little the light goes off. Oil pressure runs at 40 and below. What can it be?

My car has 129400 miles.
My car has an automatic transmission.

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