I regapped my plugs in my 21 about a year ago and it is a early build 21 3.5 due to knock which it solved it right away. I regapped my plugs on my 22 a 9-27-22 build for my tune and assumed they where going to be the same spark plug but I was wrong. Out of all my ecoboost the 22 is the first i have seen using a compressible flat washer.
It had me thinking maybe all 6 washer fell off in my 21 but that was not the case. Has anyone seen this before, can anyone educate me of why they went...
21 spark plugs versus 22 spark plugs
It had me thinking maybe all 6 washer fell off in my 21 but that was not the case. Has anyone seen this before, can anyone educate me of why they went...
21 spark plugs versus 22 spark plugs