Hi, I have an 84 Vanagon. The most bizarre thing.. it runs great, but
if we have any significant rainfall and it becomes cool over
night--cool enough to cause condensation, thn the van won't start. If
it doesn't condense, its fine. it doesn't matter if I drove through
rain or it was parked safely under the awning... same result.. no
start. Anyone have an idea as to where the problem is? I checked the
cap & rotor, all dry, clean and good shape. What am I missing here?

Timothy in Phoenix.