NGK TR55 problems?
I had a 98 S-10 that I put a set of TR-55VXs in, I am pretty sure it was when they first came out. Took me forever to get them, but anyways, I developed a really bad miss, and it turned out to be a plug. The all looked fine, and the gaps were right. What happened? I have no idea. I put a new set of Bosch regular platinums in and the truck drove fine. And yes, I checked all of the wires, and made sure they were plugged in right. I always assumed it was just one of those things that happens from time to time.


