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Oh okay I gotcha. I still kinda wonder if that's the issue, odd it's only affecting one cylinder. Maybe swap just that one plug to confirm..?
Or this.. or put the stock ones back in for a little while.
Inspect the plugs carefully for cracking in the porcelain. It's pretty easy to accidentally crack em. Especially with certain sockets. I have one I call the cracker. It's a sweet $50 magnetic spark plug sockets that holds the spark plugs/keeps them from falling out of the socket, but damn it's really easy to crack one using it.
There was actually more misfire than just cylinder #3. I found more misfires from different cylinders on another log. I just finished replacing all the spark plugs. Here is a picture of the ones I pulled out. Do they look bad?
So far so good no misfire as of yet. It normally did it at operating temperature though so ill know for sure tomorrow going to work.
Well crap misfire is back the new spark plugs fixed it for a while. Why would new spark plugs fix it for a while? These are one step colder plugs. If i return them to stock spark plugs and it does it then atleast i know its not the spark plugs. I guess then I would have to remove the lt4 injectors and replace the seals or get them flow tested...
Problem solved! Taylor spark plug wire had a hole in it where the spark plug connection is at! It was letting the electricity escape. I didn't see it because of the boot on it. Thanks everyone for your help Picture attached
I've always ran the MSD's for 2 reasons.. 1 is the first set I tried was old and used and I used them for years with no issues. The second is they bend, you can clip them on the plug and lean them away from the header and they will stay there, it's a cool feature for when you're running headers. Then you don't have to spend all that extra money on heat boots.
05-27-2020, 07:12 PM
