[HUMTECH]

Agreed, bad grounds can cause many gremlins. One fix I have done to many H-1's is to run A new ground wire from G-1 to G-4. G-1 is your underhood ground bus and G-4 is your under dash ground bus. Simply drill A hole under hood by your hood lock cable and run A new ground wire from the under hood ground bus to the under dash bus, located on the left side just above your kick panel. Just from experience fixed many "strange" electrical problems by adding the extra ground. Also make sure to fill the hole drilled with silicone when done or you end up with A water leak above your fuse panel, not good.