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Stop/Start Issue - Error Code P0507

JR!

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Sho I trod the past few days to reproduce it with the start / stop enabled. No luck but as soon as I disable it fully heated up 2-3 min it throw the cel light and disables the start stop function. I have an appt next week with the dealer here in Florida. When I called my dealer in jersey they said they have not had anyone with that issues yet. Side not with the start/stop enabled the average gas mile in town is up to 21 and climbing. Guess that is a plus
 

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Sho I trod the past few days to reproduce it with the start / stop enabled. No luck but as soon as I disable it fully heated up 2-3 min it throw the cel light and disables the start stop function. I have an appt next week with the dealer here in Florida. When I called my dealer in jersey they said they have not had anyone with that issues yet. Side not with the start/stop enabled the average gas mile in town is up to 21 and climbing. Guess that is a plus
Hi JR!

We're sorry to hear that you are having a tough time with your Jeep Wrangler. Please feel free to send us a private message if you are in need of additional assistance while your Jeep is at the dealer next week.

Darlene
Jeep Social Care Specialist
 
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sho

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The next setup for the dealer today is to replace the mass airflow sensor and then the throttle body. Jeep has also shipped out a new PCM that will be installed on Wednesday if the items today don't fix the issue.
 

JR!

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Sho please let me know if that works and gingered crossed that takes care of the issue. I have an appt to take my Jeep in next week.
 

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sho

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The dealer replaced the pcm today and things are looking better. Unfortunately with the sub zero temps we canā€™t get the stop/start to engage at all today. But the tech says the rpmā€™s are more what he expected. Hopefully tomorrow we can give it a better test with outside temps expected to be in the low 30ā€™s.
 
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sho

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48hrs since the dealer replaced my PCM and all is good now.

JR! good luck on yours if you have issues PM me and I can help get you in touch with my service guys and maybe he can share his information.
 
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sho

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I am back in the shop. Issue came back Sunday. However I didnā€™t have the cel only the stop/start error. They are looking at it now.
 

subiescott77

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I came back home from two week vacation to a dead JLUR. After it was on a charger overnight it started on the second try. Ran it outside for hours until I knew I could get into a dealer. Noticed the engine stop start service warning. Dealer tested my batteries and found no issues. They actually said my alternator was not providing the right amount of voltage. Part is back ordered and I'm going on four days now without the JLUR...I'm positive this is going to be a rabbit hole of problems.
 

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I am back in the shop. Issue came back Sunday. However I didnā€™t have the cel only the stop/start error. They are looking at it now.
Hi sho,
We're sorry to hear about this! Please let us know if there's anything we can do to assist while your Jeep is at the dealer.
Lydia
Jeep Social Care Specialist
 

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Hau82

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I am back in the shop. Issue came back Sunday. However I didnā€™t have the cel only the stop/start error. They are looking at it now.
Most common causes for a P0507 code is either a vacuum leak or a faulty Idle Air Control Valve. There is a TSB for vacuum leak, have your dealer check it out,!

Screen Shot 2018-09-25 at 11.04.43 AM.jpg
 

HungryKen

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So this reply doesnā€™t exactly relate, but I am having an issue with my start/stop. Every time I am stopped it turns off for about 30 seconds or so then it starts back up. I read all the stuff in the manual about why it would start up and Iā€™m pretty sure itā€™s not any of those issues. Only 450 miles on it. I even depressed the pedal with two feet just to make sure there was enough pressure. Also, thereā€™s no dash lights on indicating thereā€™s something wrong. Guess Iā€™m gonna have to take it to the dealer to get it checked. I really donā€™t even care for the feature but if itā€™s there it should work. Anyone else experience this?
 
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sho

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So it has been identified that there is a software issue with the 2019 jeeps 2L that is causing my issue. At this time FCA believes mine is the only one experiancing the issue but we all have the same software.

Proper identification is key to not wasting your time with a lot of useless parts replacement and time in the shop.

you need to watch the rpms after you see the error for start stop. when i am at idael and in park. At normal Ideal ~800 rpm the the computer is asking for more RPM's spacificly it wants 1450 but the jeeps is only going to 1150. once the pcm see's this mismatch is when the start/stop warning and CEL will come on.

This issues was identified preproduction in 2017 and a software fix was created for it that went into the 2018's. Apprently that software was not put into the 2019's. They currently are working on testing this code in the 2019 software and should be release shortly to all of us.

Until then if you experiance this issue my suggestion is get the dealer to report it. then clear all the codes. You can then drive your jeep with out issue if you don't sit in park for longer than 3 minutes the issue should not return.

I will let everyone know once I am contacted that they are ready to install the new software on my jeep. Hopefully less than 60 days.

I do want to say thank you to @JeepCares and the services manager at Royal Gate Jeep. Once they got involved to identify this issue they have been great to work with and have done everything they can to keep me informed and limit the impact to me as much as possible.
 

GreyFox

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So it has been identified that there is a software issue with the 2019 jeeps 2L that is causing my issue. At this time FCA believes mine is the only one experiancing the issue but we all have the same software.

Proper identification is key to not wasting your time with a lot of useless parts replacement and time in the shop.

you need to watch the rpms after you see the error for start stop. when i am at idael and in park. At normal Ideal ~800 rpm the the computer is asking for more RPM's spacificly it wants 1450 but the jeeps is only going to 1150. once the pcm see's this mismatch is when the start/stop warning and CEL will come on.

This issues was identified preproduction in 2017 and a software fix was created for it that went into the 2018's. Apprently that software was not put into the 2019's. They currently are working on testing this code in the 2019 software and should be release shortly to all of us.

Until then if you experiance this issue my suggestion is get the dealer to report it. then clear all the codes. You can then drive your jeep with out issue if you don't sit in park for longer than 3 minutes the issue should not return.

I will let everyone know once I am contacted that they are ready to install the new software on my jeep. Hopefully less than 60 days.

I do want to say thank you to @JeepCares and the services manager at Royal Gate Jeep. Once they got involved to identify this issue they have been great to work with and have done everything they can to keep me informed and limit the impact to me as much as possible.
Sorry for the stupid question, but where do you find any thrown codes? Mine says no stored messages, just service start/stop. I've only had it throw twice since I picked up my Jeep the end of December. And it clears/resets when I turn it off. It goes to the dealer this morning for them to check out. Thanks.
 
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sho

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Sorry for the stupid question, but where do you find any thrown codes? Mine says no stored messages, just service start/stop. I've only had it throw twice since I picked up my Jeep the end of December. And it clears/resets when I turn it off. It goes to the dealer this morning for them to check out. Thanks.
My issue is very easy to reproduce. if you have the same issue as me it will happen every time you are in park with the jeep at normal operating temps. Because of this the dealer has been able to connect to the jeep with his scanner and see it happen real time. Also mine posts a check engine light on the second or 3rd time the issue happens. That code is stored even after a engine shutoff.
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