Oxygen Sensor malfunction

[Iowawink]

Has anyone with 2021 or newer JL Wrangler experienced a malfunctioning oxygen sensor? It had a replacement cost of &599? Wondering how common this is and why it is not a recall or free replacement.

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[melendez69]

O2 sensor malfunctions may not be specific to any particular MY... upstream, downstream? Is dealer giving you this information, or did you pull codes?

Quite a few of us (including me... leaking pcv valve) have experienced this for one reason or another... but $600 seems steep.

O2 thread

 

[Heimkehr]

Has anyone with 2021 or newer JL Wrangler experienced a malfunctioning oxygen sensor?
It had a replacement cost of &599?
Wondering how common this is and why it is not a recall or free replacement.

Yes. I replaced both upstream O2 sensors on my 2.0T to resolve a recurrent P1128 CEL.

I selected the sensor that cost a fair bit less than the other one, hoping to save a few $$ and resolve said CEL. Nope. Only when the second sensor was replaced did the CEL go out and stay off. That's how these things go, sometimes.

I already had the appropriate socket kit on hand, so this was a straightforward and comparatively speedy job in my garage.

The OEM sensor that solved the issue was $115.00. Assuming a $599.00 quote, there's no way in Hades that the associated labor should cost anywhere close to $484.00.

There's a recent thread that discusses O2 sensor failures occurring on the Pentastar. It's been suggested that there's a known overvoltage issue between the PCM and the sensor, where the excess voltage is damaging the sensor's heater. That in turn triggers the related CEL. As the sensor is a sealed assembly, repair isn't possible. Replacement is the only choice.

 

[alphawolff]

Has anyone with 2021 or newer JL Wrangler experienced a malfunctioning oxygen sensor? It had a replacement cost of &599? Wondering how common this is and why it is not a recall or free replacement.

Recall = safety issue

Failed o2 sensor = emissions issue

 

[Iowawink]

Yes. I replaced both upstream O2 sensors on my 2.0T to resolve a recurrent P1128 CEL.

I selected the sensor that cost a fair bit less than the other one, hoping to save a few $$ and resolve said CEL. Nope. Only when the second sensor was replaced did the CEL go out and stay off. That's how these things go, sometimes.

I already had the appropriate socket kit on hand, so this was a straightforward and comparatively speedy job in my garage.

The OEM sensor that solved the issue was $115.00. Assuming a $599.00 quote, there's no way in Hades that the associated labor should cost anywhere close to $484.00.

There's a recent thread that discusses O2 sensor failures occurring on the Pentastar. It's been suggested that there's a known overvoltage issue between the PCM and the sensor, where the excess voltage is damaging the sensor's heater. That in turn triggers the related CEL. As the sensor is a sealed assembly, repair isn't possible. Replacement is the only choice.

 

[Iowawink]

Thank you for that complete answer, much appreciated!

 

[Iowawink]

O2 sensor malfunctions may not be specific to any particular MY... upstream, downstream? Is dealer giving you this information, or did you pull codes?

Quite a few of us (including me... leaking pcv valve) have experienced this for one reason or another... but $600 seems steep.

O2 thread

Dealer pulled codes, I declined repair in short term Will look at the paperwork more closely.

 

[ajrez]

I replaced one of mine in July (Bank 1 Downstream), paid $60 for it from the dealership and had it installed in 30 min. $600 definitely sounds outrageous.

 

[v-rider]

If you have any codes that are related to O2 sensor "open heater circuit" you most likely had an overvoltage or overcharging event that cracked the ceramic heater inside the sensor. Stellantis knows that the JL, JT and VR platforms are experiencing this and it seems they haven't determined the root cause yet. This is NOT a sensor quality issue, so replacing the sensors without fixing the root cause will just leave you to replace the sensors (and maybe other components) later on down the road.

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