Hootbro
Well-Known Member
My 2021 Willys has been rock solid with no misfre or any other issues.
The traded in 2020 Rubicon I had was another story. Would have the occasional pending but not posting P0304 cylinder #4 misfire code that would give me the ESS not available light. Started to be come more common as time when on. Never left me stranded but I knew there was an underlying issue. Since it never posted as a permanent code for the CEL, my dealership would not do anything about it. I am sure it was a prime candidate for the RH Intake cam replacement TSB when and if it ever finally posted.
The traded in 2020 Rubicon I had was another story. Would have the occasional pending but not posting P0304 cylinder #4 misfire code that would give me the ESS not available light. Started to be come more common as time when on. Never left me stranded but I knew there was an underlying issue. Since it never posted as a permanent code for the CEL, my dealership would not do anything about it. I am sure it was a prime candidate for the RH Intake cam replacement TSB when and if it ever finally posted.
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