Driver side cylinder bank not firing after new plugs/wires. Still sparks at coils.
First Post! woot!
At any rate, I'm working on my 96 Ranger AT w/ 179K miles. I just picked it up as a light duty truck a few weeks back.
Ok, so here's the situation:
Truck ran smooth and OK, but was hesitant to go over 2.8Kish. Still smooth, but felt like it was very lacking in power.
Changed the plugs [NGK Plats] and wires (which I think were both original equipment!!!) Over half of them didn't have electrodes left above the porcelain. And the wires were nearly impossible to get off. I actually had to cut the rubber plug shields with razors because they were formed into the plug insulators.
Cleaned Throttle Body.
Also dropped the tranny pan and changed the fluid/filter.
Now the problem:
Runs like straight crap. Misfires like crazy, and the engine kicks like a mule.
I can remove ANY ONE of the passenger side wires from the ignition coil, and you hear the motor die down.
I can simultaneously remove TWO wires from the driver's side bank, with NO difference in idle. (probably can remove 3, I just havent tried cus I kept getting shocked.)
They are still sparking, because as I remove them from their sockets, I can see and hear the sparks jumping over to the wires.
No shorts in the wires and they dont contact anything they could ground out to.
I have checked for any vacuum lines I may have knocked loose, but this would have no effect on why a whole cylinder bank isn't firing.
Anyone ever hear of something like this? Please help me out