coil over plug question

[JPA]

I recently (3weeks ago) replaced #6 COP. I did all the things this web site suggested. Today, I got another check engine light. The scan tool tells me it's cylinder 6 again. The plugs were replaced with Autolite's. Any ideads what else I might want to look at. Thanks

 

[green03]

try swapping coil packs with another cylinder's and see if the code changes.......
Matt

 

[green03]

on yeah.... coud also be the injector for that cylinder. Does it have a dead miss or does it run okay going down the road?

 

[JPA]

I swapped out the cop and and replaced the plug at the same time. The plug was an autolite with no more than 3000 miles on it. The plug looked good. I replaced it anyway. The miss went away. I'll have to wait and see. Green03, to answer your question the truck ran ok down the road cuold feel a miss from time to time. It's running well for now. We'll see... Thanks guys

 

[phjohnso]

Depending on what one you you had to change out you might have had quite an ordeal.

 

[lakmflx]

Did you happen to drop the plug anywhere when you first installed it? I did that once during my teen years and i had a hell of a time trying to find out which one it is and when i found the bad plug, the gap changed cause of the drop.

 

[JPA]

Thanks for all the input folks. The bottom line on this is I think the New COP was defective. The plug gap was correct, I did not drop the plug (did that in my early years too). Anyhow, the expy is running better. OBTW it was #6 cylinder- easy to replace. TTL.
C YA, till next time