Originally Posted by AZPoolBoy480
Are you getting any codes? Autozone/similar places will pull the codes for free. Mine would do the shudder until I slammed the pedal. It was showing 2 misfire codes. I decided to replace all my COP's and haven't had a problem since.
I haven't had them scanned in quite awhile and don't remember EXACTLY what they were, but if I do remember right they were lean on like bank one and then a misfire on one of the cylinders on that same side. I will go try to have them ran agian tomorrow, but my check engine light ain't on (it used to come on) but the second to last time I replaced the plugs I had the codes cleared