I'm curious as to what the heck happened to this van along the way before it came into your possession. Having driven vans as old as an '84 Maxiwagon and as new as the '01 that I'm in now, the biggest problems I've seen have been a bad clockspring in the '84 that messed up the horn along with a cracked exhaust manifold and a failed starter, and another cracked exhaust manifold on the '97 I drove for awhile. One other van in the little fleet has a bad sensor in the transmission but it still seems to run OK, and my current '01 may have an oil pressure sending unit that's on the fritz. I'm starting to wonder if this van was ever submerged in water or something, based on all of these gremlins that you're finding. I hope not for your sake, but this is an awful lot of trouble for a vehicle design that's been fairly robust.