2 cyclinders on left side is not firing fouling out plug. I have already changed the plugs, wires, dist. cap, and rotor button. o2 sensor, tried fuel injection cleaner. Don't know what else it could be.
I was gonna say ECU but i'm not to sure that your model has one.
ignition pack ...the each run 2 cylinders
Have u checked the valves sounds like they might be bad or burnt does not have coils like that just one
Looking for a Used Blazer in your area?
CarGurus has 1,148 nationwide Blazer listings starting at $1,299.
Search Chevrolet Blazer Questions
Chevrolet Blazer Experts