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Discussion Starter #1
First time poster. Reading posts here helped me back when my '14 Overland Diesel was having the typical DEF troubles.
Now, I'm having check engine light problems again. I called about it a few months ago, and they told me to just keep driving it, and make sure I'm putting quality fuel in, and driving at highway speeds. Switched gas stations, drove more on the highway, and nothing changed.

Finally got an appointment with service (tough in Hawaii) and took it in. Just under 28k miles, P0133 code stored, and they said they possibly fixed it as part of a PCM update. 2 days later, the light was back on. Now I'm waiting on another appointment after being rescheduled twice for the diesel mechanic being out.

Luckily, I negotiated a free extended warranty after the DEF issues, or else I'd be out of warranty coverage at this point, even though I started this process with the light before the 3 years was up!

For info, I've kept up with timely oil changes, replaced air and fuel filters. I've had all the software updates. The catalytic converter and injector/doser module were replaced 10k miles ago in 2015.

This last visit, they couldn't figure out the check engine light for hours, and then finally said it was reset with the PCM update, but I don't want to keep taking it in just to get things reset and not fixed. Any ideas for me? Or specific things I should tell them to check?


Truly considering trading this vehicle in, because while I LOVE it, I can't afford hours of labor when nobody has a clue how to fix things once this extended warranty runs out. And I still owe a hefty chunk on it as well.
 

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Also, if you see this post twice, I apologize. Posted in the wrong category at first, and then deleted and posted here.
 

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Also, found this on Your Mechanic . Com. Will be asking about these, but welcome any advice to take with me to next service appointment.
What causes the P0133 code?
  • A faulty O2 Sensor
  • A leaking exhaust manifold
  • An engine vacuum leak
  • An open or short in the wiring of the O2 sensor
  • Soot or oil buildup on the O2 sensor (excessive buildup will clog the ports the sensor uses to measure the air fuel ratio)
  • A dirty mass air flow sensor
  • Incorrect fuel pressure
 

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It's in for service. Hoping they figure it out. They said a lot of the P0133's end up needing new Oxygen sensors, but they have to eliminate cheaper solutions first for Chrysler's warranty to cover it, and it's still a $100 copay for me. :/
 

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Even though there is no discussion happening here, I'm updating in case anyone else comes looking for the same info. They did end up replacing the Oxygen Sensor. $100 copay with the extended warranty.

Now, to decide to sell it while it has new tires and no engine lights, or cross my fingers this is the end of the troubles. Never imagined I'd have a car in the shop this often with less than 30k on it!
 

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Thanks for the update. I'm in the same boat you are. I bought my 2007 at the beginning of the year and while i love the vehicle, I've had two major problems with it and it's still in the shop. First was sludge in the coolant, now I have a ETC warning light. I'll keep it for about a year but any more problems and it has to go, its a shame too because I really do like it.
 
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