How Can You Tell If An Ignition Switch Module Has Went Bad

I have a 1991 Chevy Lumina. It started to run around, is missing here and there. Yesterday, however, to do some big time car started chugging and act like he wants to die. I was to lose power. When I stepped on the gas, I had to push down the gas to go there even a slow, only to come home. The mechanic said that he was connected to a diagnostic computer to test it. . . He said the spark plugs were good. This part is somewhere around the engine block under the coils. Does anyone know anything about it?

Answers for The Question

  1. Kenny
  2. gary o
  3. badintentions
  4. sparkplug