After rereading your post, it sounds like you switched to the rear, but you think it stayed on the front tank and finished that off. But then when it started bucking, you switched to the front tank and it was fine? I guess I'm a bit confused on how that could be. If you kept running the front tank and emptied it, but switched to it when it started sputtering and it was fine?
My question would be is... DId the fuel gauge move when you were driving the rest of the day? How far down did it get?
If it's not switching to the rear tank at all, then that leads me to believe a bad selector valve. If it is switching to the rear tank, then the pick up might be bad, You would have to drop the tank to confirm.
Last edited by 95powersmoker; 05-02-2011 at 10:20 PM.