Discussion Starter · #1 ·
I was underneath my suburban today (2008 2500) and noticed that it has 2 tanks. There is a smaller one that is right above the spare tire which the filler tube goes into, but then there is a much larger tank connected to it on the driver's side. I tried to figure out more info, but have come up empty so far. Why have 2 tanks instead of one larger one? Are there 2 different fuel pumps and sensors? I don't get it.