[67JimmyMO]

Thanks for the reply 95 S_Trucker, that fills in a lot of the blanks. I have never had a truck with 2 tanks that didn't have some way of (manually) switching between tanks.

I did some testing this morning and found that the little transfer pump did run when I put 12V directly to it. It sounded a kinda noisy though. Also, just to add a little more info to the thread I did replace the high pressure fuel pump in the front tank a couple of years ago, probably put 2000 miles on the truck since then.

Had no clue about the existence of a "balance module"...and would sure appreciate looking at any diagrams you come up with.

Wasn't really sure where to post this so I just went by the year, 2000 model in the 99-06 forum.

Thanks again!