Evening all,

I just bought a 1990 E250 cargo van with a 302. I usually just go right out and buy a Haynes but happen to swing by the local library and they had a Chiltons for the year and model I just bought. The book was horrible. I'm having second thoughts on getting a Haynes now. I was most specifically looking for a chassis schematic that would have in detail the fuel pump, selector switch, and the valve that controls the fuel from both tanks to the engine. My dual tank system is not working and the previous owner was having to live off of the rear tank only. I was told not to touch the switch or I'd run out of gas. I want to learn more about the system but the Chiltons was of no help at all. Before I start to troubleshoot the system I need to know where all of the parts are and how they are wired. Can anyone recommend a manual or where to get a cd or something that will have my van in detail please.

Thanks and have a nice night.

Sid