[jerseybrewing]

Hi all,
I am at wits end on this one, hoping this forum can help before I resort to taking it to the dealer (off warranty too!), gulp

I have a 2003 dream cruiser.

My car started stuttering a few weeks ago for no apparent reason when driving, could only limp home and had to keep my car at a few specific speeds to keep the engine from shaking badly, like a really bad wheel alignment.

I checked the error code, had a p300, p304, and p351. All pointed to a cylinder failure in #4, likely needed a new ignition coil.
I replaced the plugs and wires, problem went away for 2 days, then happened again. replaced the plug and it was ok for a day.

I replaced the ignition coil, was ok for a day, started again!

Now after my car engine gets warm, seems to happen randomly. If I shut the car off for a second and restart, it will go away even when the engine is hot, but never for more than 5-10 mins then starts again.

If it were a bad coil, it should always misfire I would think? I am not a mechanic, just trying my best to take care of my PT. No oil on the plug, either when I take it out.

Any thoughts on what it could be?
Thanks in advance
John