If you go to www.autozone.com, they have free online auto repair manuals. You can find the replacement procedure there. That's where I found it.
a bad coil or plug to be safe change both
None -inside the coil
That year blazer does not have either one of those sensors. If you are not getting any spark to the spark plugs. You should replace ingnition module. Need to make sure the coil wire is good, check ingnition coil also.
you have to take the dash out then it is up against the fire wall .you could get a haynes book it tell you step by step how to do it
mounted next to the ing coil on the same bracket
On top beside the intake on passenger side of vehical... You can trace coil wire from distributor to find
The coils are bolted to the ignition control module, there is no coil wire as such.
u have to pull the whole distributer to change the pickup coil
It could be the crank sensor, depending what year vehicle you have.
Check the ignition control module (autozone) and check coil resistance. After that not sure I have same problem with new icm and new coil.
Ignition coils can go bad from shorts or from age. A coil wire that is leaking can cause a partial short to ground and ruin a coil. Coils can go bad simply with age as well, as heating and cooling over time just wears them out.
The 2000 Blazer with the 4.3 engine has one coil.