Flashing Check Engine Light on NEW 2022 Gladiator Overland

[ShadowsPapa]

I wish folks would give the exact details as far as conditions, drive time, engine temp (cold or warmed up thoroughly is good enough) and other factors when talking misfire.
It matters. A misfire isn't a misfire isn't a misfire.
For example - some get it just driving along - they are cruising the highway and suddenly a misfire at mid-range RPM, maybe 20 mph or better and so on.
Some get a misfire right after a cold start - then after it starts to warm it clears up.
Some get a misfire like I did - life was good EXCEPT when it was thoroughly warmed up, parked for 20-40 minutes, then restarted. Idle to off-idle it triggered a flashing light. Sometimes it set the light - sometimes it stopped flashing and the light stayed off. Sometimes you could feel the misfire, sometimes not. But it always cleared once the RPM was upped and the thing had run for a few minutes.

Details, please. Can't call a doctor and say hey doc, my arm hurts, what's wrong........ and leave it at that.
Can't say "I get a misfire" and drop it at that. So? When? Conditions? RPM? Travel speed? Was it cold or hot? Was it a start after sitting a few minutes, or happen as you were driving along at 20 mph or more?
No wonder there's such confusion out there.

Oh, my misfire was HOPEFULLY resolved - CCDIF. It hadn't yet learned the cam/crank relationship. They found a STAR bulletin (TSB) on it - and they told me flat out - my precise description of exactly when it happened, when it didn't, is what helped them find the issue.
(but then as a former mechanic/tech myself, I tend to feel sorry for them at times because it really ticked me off when I had a car dropped off and they only said "it's acting funny" and walked away.)

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[Bobchadwickga]

I've had it happen three times. The CEL light flashes for a few seconds right after I start it, changes to a solid and then goes away after a few stop/start cycles. Took it in the first time. Got an appointment in 30 days and by then the code had cleared and they wouldn't even look at it.

I had my own code reader, P300 if I recall correctly, that indicated intermittent miss. I haven't been sweating it too much as it has been clearing. It seems like an intermittent miss for a couple of seconds, stops happening, the code is stored for a while and then goes away. Got 5 years for them to figure it out, which from other posts this is not uncommon and Jeep has not yet figured out what to do about it.

 

[ShadowsPapa]

which from other posts this is not uncommon and Jeep has not yet figured out what to do about it.

You can't compare yours to others. Figure out which person's misfire? Mine? Yours? The next guy's whose engine is misfiring for a very different reason?
If you find 20 people with a misfire, there's likely to be 4 different causes at least.
Like I said before - a misfire isn't a misfire isn't a misfire. What caused Joe's may have been fixed by a flash - a known issue. What caused another may have been caused by - CCDIFF not learned - a known issue under specific circumstances, we could go on and list others - many with different causes.
This is one reason I capture data as fast as I can, screen shots, logs and so on.
My wife's Grand Cherokee had a misfire that started with just a few hundred miles on it. It bucked like a bronc with a burr under the saddle. It was severe.
NO light - not even flashing, let alone solid.
I got it to do it in the driveway and on the road. I logged everything, captures freeze frames, etc.
The light was never set, found no "stored" or permanent code as I recall........
I took it to the closest dealer and about 2/3 of the way there the thing smoothed out and was purring like a kitten - smooth, even, no sign of trouble.
They plugged into it - basically found nothing but a transient P0300 - and they could not duplicate it except for once they did "get a misfire".
They used my logs and captured info and found a TSB - SPARK PLUGS.
They replaced the spark plugs according to the TSB and it's been perfect since.
That was under 1,000 miles (about 800 I believe) and it's now got about 8,000 miles on it - 1 3/4 years later - not a hiccup out of it.
So - is yours caused by spark plugs?

Plugs, injectors, cam/crank relationship, phasers, coil packs, PCM flash, we've seen a fair list of causes.
In the end, we can't say "I hope they finally resolve these misfire issues" - it's not common, and it's not a single cause. They've got to treat 'em as one at a time.

 

[Bobchadwickga]

Don't disagree but there is a commonality to some of it and based on posts I've read here and believe you have been involved with, Jeeps seems to recognize this and is working toward identifying the common denominator and working toward a fix.

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