1998 Chevrolet C1500 4.3L v6 Vortec. P0300. Random multi misfire. ???????

Question

1998 Chevrolet C1500 4.3L v6 Vortec. Changed many of the things under the code suggestions. What did I not change is the question?????????? LOST

Answer 1

There are variety of causes for a random misfire condition, from mechanical condition such as the intake valves, to ignition wire, the distributor cap. The approach is to inspect the engine its sparkplug wire could be leaking secondary ignition, to faulty sparkplugs,