jspringator wrote:
That is exactly what I have. I would call it a shudder at 1500 RPM and below when ascending a hill. It isn't bad enough yet for me to do all that. It occurs infrequently, at least as of now.
I expect it will get worse and finally set a code! I need to get out my receipts and figure out what COP's haven't been replaced since my replacement of all 10 with Motorcraft units about 3 years ago.
You seem to have a higher than typical COP failure rate. Are you using dielectric grease when you install? Do you do a lot of short-cycle driving where the engine doesn't get fully warm?
Have you done a plug change yet? Platinum plugs?
Just trying to help figure out why yours are going out so often. I've only had one fail in 365,000 and I just replaced all of them last weekend as a preventative measure (it was time for plugs anyways).
