I just filled up my truck and the gauge needle didn't go all the way back up. It stoops between 3/4 and full. Before I filled up the "Low Fuel" light was on but had only been on a few miles. I put 21.5 gallons in and topped her off, so I'm pretty sure it should be full. Ever happen to anybody else?

 

well i know that sometimes mine takes a little while for it to register a full tank

 

did you fill it up with the engine running? that may confuse the computer.. you can try resetting it by disconnecting the battery if it doesn't go away..