Started the vanagon yesterday and everything was working fine then all of the sudden the Tach pegged to the extreme right and would not go back to the left till I turned the engine off.. When I restarted it it did the same thing..It appears I have some sort of gremlin lurking in the electrical system. Any ideas where to start looking..or what to look for..the engine was idling normally when this occured..Everything else seems to be working normally..