How clickbaity a title I would use!
it was a bad sparkplug, brand new. I was foolish to chase a misfire for 6 berking months that was a bad new out of the box part. I should have had less faith. I just figured it was new so it must be good.. I did plugs when I did the short block cause it seemed like the thorough way to do it and one of the new ones was faulty.
It runs amazingly and is the fastest its ever been
live and learn I guess!
Happens to the best of us. New part must be good.....not. Glad you sorted it out Captain Clickbait.
"New" means "never ever worked" but spark plugs are EXTREMELY rare to be bad out of the box. Nice job!
Click-baity or not - that's a good catch!
But I'm wondering what path you took to isolate that plug? Can you share your approach?
I had the same thing drive me nuts on the ZJ I had. I ended up getting the local dealership to diagnose it. Took a tech a full afternoon to find it with all their equipment so I didn't feel too bad. I believe it was a champion brand, brand new plug.
I have run into a bad spark plug exactly twice in my life, and i actually was a full time tech for a living. It is RARE.
This sorta happened to me awhile back. Plug wasn't new, but the porcelain cracked. Took few months and lots of throwing parts to discover that one
eastpark said:Click-baity or not - that's a good catch!
But I'm wondering what path you took to isolate that plug? Can you share your approach?
I was just out of ideas and figured it wasnt bad to throw a fresh set in. Luckily it worked.
As far as approach, you can just measure resistance down the center electrode of a spark plug. Most of them will have a resistor built in and show something like 4k ohms, but it doesn't really matter what the resistance is, just that it doesn't match the other plugs because you always have multiple of the same plugs to compare.
So basically it's just 'one of these things is not like the other' with a multimeter.
In reply to Carbon (Forum Supporter) :
What brand plug was it?
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