homerz28

Guys, I'm pretty certain I have a bad coil pack. I know it's not the plugs or wires. I can't ever seem to find the time to take the car to a shop so I thought I would just go buy a coil pack and start swapping positions until there is a change. Has anyone else done this? Any pointers? I appreciate any advice.

conan

iTrader: (5)

You should be able to see a difference in 1 plug VS the other 3. I would pull the plugs and see if one will tell you signs of not firing. Might save you the time of the swapping game.

LS6427

iTrader: (2)

Start the engine when its cold. Let it run for 15 seconds. Feel for the cold pipe. Thats the one NOT firing.

I did this with my 427ci years ago when I suspected a cylinder NOT firing. Found it in 15 seconds.......no tools.

.

homerz28

That's a great idea LS6427. I never thought of that. Thanks!