I have a 2000 silverado with the 5.3 L in it. The truck has the 26 gal.
tank (reg. cab, 6 ft. bed) in it. Sometimes when I start the truck, the gas
gauge on the dash will read empty (even though there is plenty of gas in the
tank), but then after driving for like 5 minutes the gauge will read
correctly. The past month I've been having this problem, and its been
occuring more frequently. I would say that lately it happens every 3 times
I start the truck. The engine being warm or cold, it doesnt affect it. Any
ideas? I'm thinkin bad sending unit.