Need some help here,
Took the 98 SVT for a drive today and decided to open it up a bit. Got off the throttle with a blinking CEL and car running like crap (missing badly). Drove back home (about 2 miles) with a blinking CEL indicating misfire. Pulled P0302 and P0304 (misfire on #2 and #4). Pulled the plugs and #2 is missing the tip, it's completely gone. Took the compression and that cylinder tested 0, every other tested perfect at 175-180.
I'm thinking I might have dropped a cam follower and a valve stays open. The car has 120k miles and been running fine until today (expect for a small misfire / bucking at idle). Could the plug have been destroyed on that 2 miles trip back home or do you think it was an existing plug problem and I just happened to get into a completely unrelated valve issue ?
Any input is appreciated !