Hey, I got new wires just a few ago and replaced the bad one, I had a good idea on how to find which wasnt firing, let it cool off and then start it and shut it off when the light flashes, and then go feel the headers i found 1 cool one that wasnt hot which is the second on the drivers side number 3 i believe i took the plug out sure enough gas is on there, what can cause that not to fire, i just replaced that wire too and it still did it, im going to try a differnt plug but what will cause that not to fire, the opti? or what

 

I had no spark in my #7 cylinder, turned out to be the opti.

 

thats what im thinking too, summit or autozone to replace?

 

ttt

 

Do a search for "Jason Cromer", he works at a GM dealership and wholesales parts. When you search you'll find his number, give him a call. I got my opti from him for about $220+ shipping.

 

would i want a rebuild kit for 145.00 with free shipping or the whole unit?

 

The whole unit.