Survey- For those with misfire issues

[ShadowsPapa]

You and I have discussed this earlier in this thread, my issue is identical you yours. Mine has been running fine since my last Flashing CEL (P0300) in August. At that time the dealer said Engineering had no fix. I haven't taken it back for this latest update that everyone is talking about. Ive been absent for a while with a health issue.

Wow, sorry, hope the health stuff is under control now, or resolved (even better)

I'm holding off total judgement until we hit hot weather again....... because it really only happened not only under those circumstances, but when it was warm out - 80+ degrees,
I believe it's resolved, I'm pretty confident it is - mostly because their first bulletin described the situation almost exactly and indeed mine hadn't learned cam/crank diff yet.
The good - even when it acted up it wasn't the end of the world - it always self-resolved, you could get from A to B
But - it's just not right that it should ever do any such thing to begin with. (not to mention the potential for raw fuel contaminating things)

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[Snook]

Wow, sorry, hope the health stuff is under control now, or resolved (even better)

I'm holding off total judgement until we hit hot weather again....... because it really only happened not only under those circumstances, but when it was warm out - 80+ degrees,
I believe it's resolved, I'm pretty confident it is - mostly because their first bulletin described the situation almost exactly and indeed mine hadn't learned cam/crank diff yet.
The good - even when it acted up it wasn't the end of the world - it always self-resolved, you could get from A to B
But - it's just not right that it should ever do any such thing to begin with. (not to mention the potential for raw fuel contaminating things)

Thank you. Yes, my 2 instances were in 80+ weather. Wife just drove it to Birmingham last week from the Atlanta area and back with no issues. If and when this happens again in the Summer, I'll take it in for the fix. Not going to mess with it until then.

I love this vehicle, my wife has had to drive for me lately, if were out somewhere and she comes around with it to pick me up I really get to see just how nice looking the truck is. and my wife too

 

[Rusty Shackleford]

Build date: 033010
Mileage when it first occurred: 18,300
How many times has it occurred: 1
What exact codes did it throw: P0300
Is the issue on going? at dealership
If so, what has been done to try to solve the issue? O2 sensor, so far
Was the issue ever fully resolved? At dealership

I have had this truck for almost 2 years now (2021 80th anniversary, 3.6L auto). I drove to work the other day, about 45 minutes, no issues. I start it up to get lunch and the CEL comes on and steady. Still on and steady the drive back from lunch. I start it to go home, still on and steady. After several minutes the light blinks and beeps at me so I decided to go straight to the dealership. I slowed down, it went back to on and steady. This happened 2 or 3 more times as I headed to the dealership. It was idling rough during this trip. The dealer called me the next day saying that the misfire was on cylinder #1 and the O2 sensor was bad because it got too hot due to it being wired incorrectly. He said they were routing the wire correctly, changing the O2 sensor and then testing it all out. I will be back to update when I hear more.

 

[ShadowsPapa]

How does an O2 sensor get hot because of wiring? It's in the bloody exhaust manifold. The wiring may have gotten too hot but..........sounds fishy.

 

[56cbr600rr]

Build date: 033010
Mileage when it first occurred: 18,300
How many times has it occurred: 1
What exact codes did it throw: P0300
Is the issue on going? at dealership
If so, what has been done to try to solve the issue? O2 sensor, so far
Was the issue ever fully resolved? At dealership

I have had this truck for almost 2 years now (2021 80th anniversary, 3.6L auto). I drove to work the other day, about 45 minutes, no issues. I start it up to get lunch and the CEL comes on and steady. Still on and steady the drive back from lunch. I start it to go home, still on and steady. After several minutes the light blinks and beeps at me so I decided to go straight to the dealership. I slowed down, it went back to on and steady. This happened 2 or 3 more times as I headed to the dealership. It was idling rough during this trip. The dealer called me the next day saying that the misfire was on cylinder #1 and the O2 sensor was bad because it got too hot due to it being wired incorrectly. He said they were routing the wire correctly, changing the O2 sensor and then testing it all out. I will be back to update when I hear more.

Please DO update...

I'm wondering also... in most cases... If someone is unlucky enough to have a "unfixable" P0300 code Gladiator/Wrangler if it is usually revealed very early in the vehicles life, for example the first hundreds of miles up to around a thousand or so.... And in your case, showing after MANY miles if it is a legit fixable problem like a coil, spark plug, valve, cam, etc....

 

[ShadowsPapa]

Please DO update...

I'm wondering also... in most cases... If someone is unlucky enough to have a "unfixable" P0300 code Gladiator/Wrangler if it is usually revealed very early in the vehicles life, for example the first hundreds of miles up to around a thousand or so.... And in your case, showing after MANY miles if it is a legit fixable problem like a coil, spark plug, valve, cam, etc....

There have been multiple TSBs related to misfires - if the dealer hasn't applied all applicable updates to the PCM, they aren't doing their jobs.

 

[dcmdon]

There have been multiple TSBs related to misfires - if the dealer hasn't applied all applicable updates to the PCM, they aren't doing their jobs.

My P0300 came back. I brought it right to the dealer and they got me in and out in 20 minutes. They scanned it and found that a PCM update is required. So we made an appointment for a couple of weeks out

I have to give a shout out to Lawless in Woburn MA. Yes, they are short staffed. No they can't get me in in a truly timely manner. But they are trying considering the technician shortage. They got me right in to scan the truck and we are scheduled. Its clear that everyone there is doing what they can to keep customers happy.

 

[ShadowsPapa]

My P0300 came back. I brought it right to the dealer and they got me in and out in 20 minutes. They scanned it and found that a PCM update is required. So we made an appointment for a couple of weeks out

I have to give a shout out to Lawless in Woburn MA. Yes, they are short staffed. No they can't get me in in a truly timely manner. But they are trying considering the technician shortage. They got me right in to scan the truck and we are scheduled. Its clear that everyone there is doing what they can to keep customers happy.

I have to say similar for Stew Hansen on the west side of Des Moines. The shop is swamped (they are taking business from other dealership shops that just can't do a good job). It really also matters who you talk to. Dan is so good he should be one of the head techs, but as a service advisor, I appreciate his depth of knowledge of these vehicles.
But the others didn't do bad. They stuck with it, found the issue, followed a STAR document, gathered the information that was sent to engineering for a final fix - but they followed the suggestions of the original document and got mine to running smooth as silk. When it's warmed up, and 40 degrees out, it runs about 600 rpm idling in gear and you forget it's still running. I look at the tach to see if it died. Nope, still going.

Dealership shops matter - the individual techs, the individual service advisors.......
It's like going to a restaurant that's a franchise or chain. Your experience at one doesn't make it certain that the service will be great, or horrible, at another one in a different state.

And employees who suck are everywhere - one thing my wife complained about constantly when we had our store - EMPLOYEES. Some were lazy, wouldn't got off a chair to help a customer - they'd just point, while others would welcome a customer and do what it took to earn their business.
They'll promise you the moon when you interview them - and sometimes a current employer will lie to get you to hire them so they can be rid of them without paying unemployment.
IMO, the hardest part of any business is employees. Not the rules and regulations or the money side, banks, whatever.
That would seem to apply to SHOPS, too.

 

[Lost1wing]

My son the Jeep nut, is a Tesla tech. He went from buses to Tesla because we wasn't treated very well from the previous employer. They still don't want to pay technicians what they are worth. He moved over to Tesla and has impressed the bosses making employee of the month several times already out performing senior techs. Talking with my son, he has told me that it's really not a big deal because of the people they hire. He said most have a shitty attitude and poor work ethics, not to mention lack of skill. I have friends in the automotive business and I can't believe they keep their job for those same reasons.

I feel this is true across the country. Nobody wants to work and they darn sure don't want to get dirty.

For my Friday flare, I will make a toast to all the techs on this forum, that help us all with our projects, our failures and our daily maintenance. I don't normally drink but I will have a Guinness or two for you guys this evening. Here's to you!

 

[ShadowsPapa]

My son the Jeep nut, is a Tesla tech. He went from buses to Tesla because we wasn't treated very well from the previous employer. They still don't want to pay technicians what they are worth. He moved over to Tesla and has impressed the bosses making employee of the month several times already out performing senior techs. Talking with my son, he has told me that it's really not a big deal because of the people they hire. He said most have a shitty attitude and poor work ethics, not to mention lack of skill. I have friends in the automotive business and I can't believe they keep their job for those same reasons.

I feel this is true across the country. Nobody wants to work and they darn sure don't want to get dirty.

For my Friday flare, I will make a toast to all the techs on this forum, that help us all with our projects, our failures and our daily maintenance. I don't normally drink but I will have a Guinness or two for you guys this evening. Here's to you!

My college class for automotive started with 30, some of them hotshots who had been working on family and friend's cars, and their own. They knew they would be great because they were racing around in jacked up modified cars.
We graduated 18. The other 12? Who knows. Hopefully not working in any dealership. I guess the math and science was more than they could handle. I mean, who needs that? Electric? Naw, poke the wire with a test light, that's all you need.

 

[Snook]

My P0300 came back. I brought it right to the dealer and they got me in and out in 20 minutes. They scanned it and found that a PCM update is required. So we made an appointment for a couple of weeks out

I have to give a shout out to Lawless in Woburn MA. Yes, they are short staffed. No they can't get me in in a truly timely manner. But they are trying considering the technician shortage. They got me right in to scan the truck and we are scheduled. Its clear that everyone there is doing what they can to keep customers happy.

Im glad you got your P0300 fixed. When mine happened the second time this past Summer, Jeep engineering did not have a fix yet, so they cleared the code sent me on my way. My vehicle never ran bad and has been great even withe the 2 CEL's that I had. It will happen again when the weather gets hot, I'll have them do the fix at that point.

 

[Lost1wing]

My college class for automotive started with 30, some of them hotshots who had been working on family and friend's cars, and their own. They knew they would be great because they were racing around in jacked up modified cars.
We graduated 18. The other 12? Who knows. Hopefully not working in any dealership. I guess the math and science was more than they could handle. I mean, who needs that? Electric? Naw, poke the wire with a test light, that's all you need.

I chuckled at, "hope they are not working at a dealership". That is exactly where my inept friends have been for the last 20 to 25 years. One is real good with part numbers and such. The other is good at changing parts. He is the reason the manufacturers have rules to follow.

 

[Lost1wing]

Im glad you got your P0300 fixed. When mine happened the second time this past Summer, Jeep engineering did not have a fix yet, so they cleared the code sent me on my way. My vehicle never ran bad and has been great even withe the 2 CEL's that I had. It will happen again when the weather gets hot, I'll have them do the fix at that point.

Mine will fail sometime this summer, just after the 36k mile mark. I hope not.

 

[dcmdon]

Im glad you got your P0300 fixed. When mine happened the second time this past Summer, Jeep engineering did not have a fix yet, so they cleared the code sent me on my way. My vehicle never ran bad and has been great even withe the 2 CEL's that I had. It will happen again when the weather gets hot, I'll have them do the fix at that point.

It's not fixed at all. The policy is just to flash the PCM and see if that solves it. If it doesn't, we keep digging.

 

[dcmdon]

I have to say similar for Stew Hansen on the west side of Des Moines. The shop is swamped (they are taking business from other dealership shops that just can't do a good job). It really also matters who you talk to. Dan is so good he should be one of the head techs, but as a service advisor, I appreciate his depth of knowledge of these vehicles.
But the others didn't do bad. They stuck with it, found the issue, followed a STAR document, gathered the information that was sent to engineering for a final fix - but they followed the suggestions of the original document and got mine to running smooth as silk. When it's warmed up, and 40 degrees out, it runs about 600 rpm idling in gear and you forget it's still running. I look at the tach to see if it died. Nope, still going.

Dealership shops matter - the individual techs, the individual service advisors.......
It's like going to a restaurant that's a franchise or chain. Your experience at one doesn't make it certain that the service will be great, or horrible, at another one in a different state.

And employees who suck are everywhere - one thing my wife complained about constantly when we had our store - EMPLOYEES. Some were lazy, wouldn't got off a chair to help a customer - they'd just point, while others would welcome a customer and do what it took to earn their business.
They'll promise you the moon when you interview them - and sometimes a current employer will lie to get you to hire them so they can be rid of them without paying unemployment.
IMO, the hardest part of any business is employees. Not the rules and regulations or the money side, banks, whatever.
That would seem to apply to SHOPS, too.

I also wonder if it is the fact that I've mentioned that I have worked as a tech and a service writer for a new dealer. One of the writers worked for a Subaru dealer at the same time I worked for a Subaru dealer and we reminisced about Ernie Bach and the craziness of early Subaru of New England distribution.

A good writer can make up for a mediocre tech. I would often get a "could not duplicate" on an RO, especially for warranty work. If I knew the tech was lazy, I'd take the car for a ride and see if I could duplicate it. If I did, I put the Tech back on it with no time for the "re-do". So he was working for free.

Do that a few times and the dreaded "could not duplicates" start to disappear.

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