hi, names Dan a few weeks back my 97 blazer was turning over and not starting. After replacing the crank and cam sensor along with the coil pack i figured out that the ignition switch was to blame and some old wiring. I've been riding out on it for the past few weeks because a gentle tap with a screw driver allows me to kick the blazer on. Now though it won't even turn over, it has power and it sounds like the gas pump is working...any ideas?

 

No really explain what you are tapping on. The switch or the starter?