P0300

[Brokenteck50]

Why are there no fixes reported for the p0300 code,

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[sdk131]

Why are there no fixes reported for the p0300 code,

That is the million dollar question....tons of threads with dealers tossing a pile of parts at the issue all the way up through new engines....but I still have not seen a single definitive cause or solution. Even if it is a low number of people in the grand scheme I still find it nutty that it still seems to be happening.

 

[Brokenteck50]

That is the million dollar question....tons of threads with dealers tossing a pile of parts at the issue all the way up through new engines....but I still have not seen a single definitive cause or solution. Even if it is a low number of people in the grand scheme I still find it nutty that it still seems to be happening.

As a 30 year master diagnostic teck its very hard to watch them dest

 

[Brokenteck50]

As a 30 year diagnostic teck its hard to watch them butcher my gladiator for 4 months. I know what is wrong with my gladiator and what caused the problem but getting the factory to swallow there pride and listen to me has been impossible, p0300 is a difficult code to deal with especially when you are dealing with tecks that have to be told what to do and are unable to apply basic diagnostic strategies , odd that we don't see what is fixing p0300,

 

[MrZappo]

As a 30 year master diagnostic teck its very hard to watch them dest

Are you saying that you know what is wrong and how to fix it?

 

[Brokenteck50]

Are you saying that you know what is wrong and how to fix it?

Are you saying that you know what is wrong and how to fix it?

Are you saying that you know what is wrong and how to fix it?

I'm under order by my lawyer not to tell what is wrong with it until my legal battle is over, but I will say the problem originated from a safety flaw in the cr7

Are you saying that you know what is wrong and how to fix it?

 

[Brokenteck50]

In the cruise control system, hopefully in a week or to i will be able to post my whole story

 

[MrZappo]

OK well I'll look forward to that.

What you are saying is that a worldwide multi national corporation with seemingly unlimited resources in the form of time, money, and skilled diagnostic test people and teams which is losing thousands of dollars every time this issue occurs is unable to figure this out and won't listen to you because they are too prideful.

Furthermore, they continue to mull around like stooges bumping their heads into walls over a period of months and are allowing countless others to be subjected to the same fate. All at great cost of actual money and reputation damage.

No disrespect intended to you or a successful 30 year career. But you had me until you mentioned pride getting in the way.

This is a cold non caring corporation that is a slave to a stock price. They don't have "pride".

In any event, I look forward to reading your story. I and many others are very interested in the cause and solution too this issue. I hope that you are right about it. It would help many folks.

 

[ShadowsPapa]

The final solution seems to vary with the truck. Some have had simple fixes, others have had engine replacement, others had engine repairs, some had some parts changed.
There's no single thing that takes care of all of them.
You may know what caused it in YOUR case, but some have been resolved pretty easily so it's not a one fix fits all on this one.

Basically you are saying you know more than Jeep engineers, because many people have had their dealers work back and forth with Jeep engineers and the star team on these.
So maybe you need to skip the shop and get a job with FCA. It's not just dealership shop techs dealing with this - these people call into Jeep support - so apparently that is who you need to talk to, not a dealer, but Jeep engineers. They are running the show and telling the dealership shops what to do in many of these cases. There's hundreds of posts about it.

That code indicates multiple misfires. A pretty sharp fellow with the computer has worked on nailing it down - and he's indicating something very very different, totally not cruise related.
P0300 is a misfire code for not one specific cylinder, typically 2 or more.
A P0300 diagnostic code indicates a random or multiple misfire. If the last digit is a number other than zero, it corresponds to the cylinder number that is misfiring.
If it was P0301 it would be a misfire on cylinder 1.

Now I'm really curious, how is a misfire cruise related? What if the driver never enabled cruise but got the misfire code? What if the driver never had cruise on or never used it? Then what? Cruise control will cause this even if not enabled?
Further, how would a P0300 be difficult? It's a misfire, that's a given. Granted, anything from valving errors, ignition troubles, a faulty O2 sensor, fuel injector issues, etc. can cause it but it's misfire - so what's left is finding the root cause. In some cases, it's known that a PCM flash resolves it. It's not a single root cause.

 

[Brokenteck50]

OK well I'll look forward to that.

What you are saying is that a worldwide multi national corporation with seemingly unlimited resources in the form of time, money, and skilled diagnostic test people and teams which is losing thousands of dollars every time this issue occurs is unable to figure this out and won't listen to you because they are too prideful.

Furthermore, they continue to mull around like stooges bumping their heads into walls over a period of months and are allowing countless others to be subjected to the same fate. All at great cost of actual money and reputation damage.

No disrespect intended to you or a successful 30 year career. But you had me until you mentioned pride getting in the way.

This is a cold non caring corporation that is a slave to a stock price. They don't have "pride".

In any event, I look forward to reading your story. I and many others are very interested in the cause and solution too this issue. I hope that you are right about it. It would help many folks.

The final solution seems to vary with the truck. Some have had simple fixes, others have had engine replacement, others had engine repairs, some had some parts changed.
There's no single thing that takes care of all of them.
You may know what caused it in YOUR case, but some have been resolved pretty easily so it's not a one fix fits all on this one.

Basically you are saying you know more than Jeep engineers, because many people have had their dealers work back and forth with Jeep engineers and the star team on these.
So maybe you need to skip the shop and get a job with FCA. It's not just dealership shop techs dealing with this - these people call into Jeep support - so apparently that is who you need to talk to, not a dealer, but Jeep engineers. They are running the show and telling the dealership shops what to do in many of these cases. There's hundreds of posts about it.

I'm also curious - what if the driver never had cruise on or never used it? Then what? Cruise control will cause this even if not enabled?

I am specifically talking about my vehicle, they are working with engineers that can't touch the vehicle, the information they receive is flawed because the techs at the dealership are very inexperienced and have never rebuilt this motor, if star gets flawed information from a inexperienced tech ,there diagnotic then intern will be flawed, the fact they had the for 4 months proved that, i will repost when I can because if you are a motor head you have got to ask yourself , how does cruise control cause a p0300. Think about it

 

[ShadowsPapa]

Yeah, how does cruise control cause a misfire?!

The PCM doesn't regulate EGR, fuel ratio, valve lift, cam timing, etc. to control speed.
It varies throttle.
Cruise control is the same as if you were driving it. In fact, with cruise on, I can even press the pedal to go faster. It's not running leaner or richer, and the valve timing isn't different nor the lift different - those are based on speed, load, temperature and O2 sensor input.

Anyway, you asked why there are no fixes listed for the P0300 code - and then you come in and talk about cruise on YOUR truck? You say you know, then why in the world ask about why there are no fixes listed?
Any fix YOU list will apply to YOUR truck - not to the others with the misfire issues.

Again, there's no fix listed because it VARIES in some cases.

 

[GoVR46]

I am specifically talking about my vehicle, they are working with engineers that can't touch the vehicle, the information they receive is flawed because the techs at the dealership are very inexperienced and have never rebuilt this motor, if star gets flawed information from a inexperienced tech ,there diagnotic then intern will be flawed, the fact they had the for 4 months proved that, i will repost when I can because if you are a motor head you have got to ask yourself , how does cruise control cause a p0300. Think about it

I thought about it, It can’t.
You must be smarter than us.

 

[MrZappo]

I'm struggling here. I'm reasonably sure that in 2020 the corporate troubleshooting team can likely remotely access everything that the on site tech can see.

I think the days are long gone when an on-site tech needs to "send" something to someone else.

They should plug the truck in and the tech team (wherever they are) should be able to work on it as if they were there.

The only thing they cannot do is physically touch the truck.

I'm sorry but this is not making sense to me. Not in 2020.

 

[Brokenteck50]

I am specifically talking about my vehicle, they are working with engineers that can't touch the vehicle, the information they receive is flawed because the techs at the dealership are very inexperienced and have never rebuilt this motor, if star gets flawed information from a inexperienced tech ,there diagnotic then intern will be flawed, the fact they had the for 4 months proved that, i will repost when I can because if you are a motor head you have got to ask yourself , how does cruise control cause a p0300. Think about it

I think if I could talk to star directly they would understand what I'm talking about, just need 10 minutes of there time and my nightmare will end but thats not happening, they don't let customers talk to there engineers, I have worked at dealerships, know exactly what they are doing which makes it much more frustrating.

 

[ShadowsPapa]

I thought about it, It can’t.
You must be smarter than us.

That's my figuring - cruise manipulates throttle not A/F ratio, valve lift, valve timing, EGR or other functions.

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