Ok so I have an 02 supercrew f150 with the 5.4l I have noticed that my fuel gauge is very slow to recalibrate when I put gas in. Is this an issue with the float? Or could it be the gauge itself? Or possibly the sending unit? I believe the gauge is also dropping to fast...reason said is I have put $55 dollars in gas in 2 days and overall have driven the truck about 100 miles