Let's face it, many problem areas in custom trucks don't rear their ugly heads until the manufacturer has already built hundreds of thousand of trucks and SUVs. For instance, Ford's Coil on Plug (CoP) ...

Even still, as the truck approached the century mark, it would be coming up on a few things that had yet to be performed. One of these was a spark-plug change, which is recommended for the 6.2L V-8 ...