2004 Ford E450 6.8 starting issue
My daughter has a 04 Ford E450 shuttle that had a wheelchair lift. It was running fine, but we parked it over the winter while doing a brake job, removed the wheelchair lift, stripped the interior for new subfloor and sealing windows... etc. The battery died and went bad over the winter so we put 2 new ones in (one in the engine compartment, and one goes under the chassis). We also replaced the starter. The bus still won't start though! The starter relays seem to be working, and we have 12volts to the starter but the ignition doesn't seem to sending the signal to the starter relay.
Is it possible that these shuttle buses have a interlock system like the bigger buses do? I ran into that on my bigger International and was able to bypass it, but I didn't expect that or think those systems were in place in the shuttles. If it is, any guesses where I might find that relay? Any other guesses or suggestions?