Trail Blazer 250 Electrical?
I have a 2002 trailblazer 250 that currently is not running. It was a couple weeks ago until I tried to hook a tachometer up to the wire on the ignition key switch that goes to the coil I think and now it won't run. I can tell that it has no spark and wondering if I shorted something out or something different from that. How would I go about trying to fix this? Thanks much.