"I'm thinking it could be a fuel injector"
     Very little chance, but there is a 99% chance it is a problem
with the electrical circuit going to this injector.
                                                               Eric

Dylan Spurgin wrote:

> Thanks again to all who helped get me running again this week when my van wouldn't start in Denver.
>
> I'm back to Texas and she ran great the whole way.  After sitting about 10 or 12 hours today she is now only running on 3 cylinders.  The driver's side back cylinder is not running.  The plug is sparking and new and there is compression although I don't actually have a tool to test it by.  The plug doesn't seem wet even after it's been running.  The other cylinder on that side definitely gets gas and runs.
>
> I'm thinking it could be a fuel injector.  Should I just put some B12 in the gas tank and drive around for a bit to see if it clears up?
>
> TIA,
> dylan