fuel tank

2005 Tahoe Z71 5.3L 182,000 miles The manual says fuel capacity is 26 gallons. When I run it waaay down into the E on the gauge all it will accept is (today or any day previous) 15.7 gallons. Is the manual mistaken or is there some sort of obstruction that doesn't allow a complete fill...

Hello All! I just replaced my fuel pump on my 97 tahoe. However, I'm catching hell reinstalling the tank on the vehicle. Just can't seem to get it to fit. I've completely drained it to make it lighter and more maneverable. Is there something I'm missing? A secret to getting it back on the...