Quote:
Originally Posted by Tommy
I'm not big on coincidences, so when a new problem arises right after I've done work on a car, I suspect I unknowingly did something while doing the previous work. And electricity takes the path of least resistance, so the arcing tells me there is too much resistance where the electricity is supposed to be going. If it were me I'd start by adding some temporary jumper cables to know the engine and ignition are properly grounded to see if that caused the arcing to stop. If so, I'd start looking for the bad connection(s).
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Its just too weird that after fixing the battery ground in the trunk that i now have a weird electrical issue at the engine. Find a bad bearing very hard to believe…why would that cause a plug to arc.
Why just this one plug? All one cylinder head? Was thinking maybe ill run a ground wire directly from the cylinder head? Think there are tapped 7/16-14 holes i could bolt a cable to.
For the life of me i just dont understand how the header could be more grounded than the engine. The engine ground looks and feels good, but maybe the next step is to remove it and clean it good…