This is exactly why once this is "fixed" or bought back I'm going back to a jk. Mine has a bad misfire on cold start and doesnt throw codes. Dealership ran a monitor on it and had over 30 misfires on cylinder 6 in under 2 minutes. Still no code.
I've been here for a while. Not sure of my build date bit even if they "fix" it I'm going back to a jk. I cant own a vehicle that wont throw codes when it's so obvious that it isnt running right.
So just left the dealer. Its confirmed cylinder 6 is misfiring and NOT throwing codes. Does it at almost every cold start now. Does not get worse under load.
I have an open case with Jeep. Really starting to distrust this jeep.
Not sure of the build date but just dropped mine off 10july.
Started at 16k
Had a yellow start stop light and code p0300
Hope to hear back today as to the solution.
Upgraded my axles at 5k. Selling front and rear axles with 373 gears. Also have a set of 410 gears someone else removed from their axles. Asking $2500 obo. If shipping is needed buyer pays shipping.