Ring land and/or cracked piston.......I suspect a piece of piston hit the plug wiping out the ground electrode and dislodging the insulator!!:eek:
You need to drop a bore camera in there and hopefully prove me wrong??:cool:
GOOD LUCK!! :thumb:
My 2014 5.0 had 100 PSI cold idle and about 40 PSI hot idle........85-90 PSI hot above 2500 RPMs!!:eek:
My 2019 car must control Oil Pressure with a bypass controlled by the computer since I only see HIGH PRESSURE under high load conditions....cruising at 60 MPS it shows about 30 PSI until I...
What "skwerl" said.......crappy Clear Coat.....probably accelerated it too much and it was brittle with a poor bond to the Base Coat!!:cool: I had it happen on a Crown Vic once.....especially the flexible bumper cover!!:(