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Discussion Starter · #1 ·
Problem with my2016 Overland.

Starting at 66,000 miles under certain circumstances, the thing would shudder and shake like the engine/transmission was going to fall out! I took it to the dealer, and after having it for two days, they said they couldn't duplicate the problem and couldn't find anything wrong.

I am now at about 77,000 miles with the problem getting worse. I took it to a different dealer. They were able to duplicate the issue and determined that the symptoms exactly matched those in TSB 09-004-17 for the 2014 models - SYMPTOM/CONDITION: A small number of customers may experience a slight engine shudder while driving. They may state that the condition feels and sounds like driving over rumble strips. It may also be perceived as an internal transmission issue or engine misfire. No Diagnostic Trouble Codes (DTCs) will set as a result of this condition. DISCUSSION: Valve stem seals on replacement head are designed to prevent excessive carbon build up from light load drive cycles. Although it may be hard to reproduce, engine shudder resulting from these excess carbon deposits, will typically only happen under the following driving conditions: • Steady speeds between 50 and 70 mph (80 and 113 kph). • Engine speed between 1,600 - 2,000 RPM. • Present during engine warm up to operating temperature after a cold soak. • Only present for a few seconds at a time and often during a 6-7 upshift. • Light load acceleration or while driving up a slight grade. • Symptom will go away either by aggressively applying the accelerator pedal or going into a zero throttle deceleration.

Mine is worse in that the shuddering can happen at lower speeds (as low as 37 mph), in lower gears (3-7), and is much more dramatic that "driving over rumble strips."

Has anyone else experienced this or similar problems with 2015 or later models?
 

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My 2016 Jeep GC EcoDiesel began presenting with a shuddering/shaking today - hence why I've taken to the web for diagnostic troubleshooting. My current problem doesn't manifest as described by TSB 09-004-17. I noticed a pronounced lateral (side-to-side) shudder while at idle (800-1000 rpm). It appears to smooth out at normal drive speeds, but at idle and low speed the shuddering returns. After restart, the engine seemed to have trouble starting - stuttering before finally catching at a rough idle. There are no associated caution lights on the dashboard. I'm actually at a loss on where to even start looking...

2016 Jeep GC Ecodiesel; 56k Limited 4x4; Stock
 

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Discussion Starter · #3 ·
My 2016 Jeep GC EcoDiesel began presenting with a shuddering/shaking today - hence why I've taken to the web for diagnostic troubleshooting. My current problem doesn't manifest as described by TSB 09-004-17. I noticed a pronounced lateral (side-to-side) shudder while at idle (800-1000 rpm). It appears to smooth out at normal drive speeds, but at idle and low speed the shuddering returns. After restart, the engine seemed to have trouble starting - stuttering before finally catching at a rough idle. There are no associated caution lights on the dashboard. I'm actually at a loss on where to even start looking...

2016 Jeep GC Ecodiesel; 56k Limited 4x4; Stock
Sorry to hear you are having problems. Your issue is entirely different than mine. Have you had your dealer check it? Are you confident you're getting quality diesel fuel and DEF? When did you last check your air filter?

FCA ended up replacing my engine. I had to get Jeep Customer Care involved. They opened a case and had a factory tech look at it. He found carbon buildup in the intake manifold that was restricting airflow at higher RPM. He also said my engine mounts were worn and had them replaced. So, at 80K miles, I have a new engine!
 

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Problem with my2016 Overland.

Starting at 66,000 miles under certain circumstances, the thing would shudder and shake like the engine/transmission was going to fall out! I took it to the dealer, and after having it for two days, they said they couldn't duplicate the problem and couldn't find anything wrong.

I am now at about 77,000 miles with the problem getting worse. I took it to a different dealer. They were able to duplicate the issue and determined that the symptoms exactly matched those in TSB 09-004-17 for the 2014 models - SYMPTOM/CONDITION: A small number of customers may experience a slight engine shudder while driving. They may state that the condition feels and sounds like driving over rumble strips. It may also be perceived as an internal transmission issue or engine misfire. No Diagnostic Trouble Codes (DTCs) will set as a result of this condition. DISCUSSION: Valve stem seals on replacement head are designed to prevent excessive carbon build up from light load drive cycles. Although it may be hard to reproduce, engine shudder resulting from these excess carbon deposits, will typically only happen under the following driving conditions: • Steady speeds between 50 and 70 mph (80 and 113 kph). • Engine speed between 1,600 - 2,000 RPM. • Present during engine warm up to operating temperature after a cold soak. • Only present for a few seconds at a time and often during a 6-7 upshift. • Light load acceleration or while driving up a slight grade. • Symptom will go away either by aggressively applying the accelerator pedal or going into a zero throttle deceleration.

Mine is worse in that the shuddering can happen at lower speeds (as low as 37 mph), in lower gears (3-7), and is much more dramatic that "driving over rumble strips."

Has anyone else experienced this or similar problems with 2015 or later models?
I have the exact problem with my Jeep in Australia. Jeep can’t diagnose it and every engineer is too busy to look at it . I would be very grateful to know if you have the answer to the problem ?
 

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Discussion Starter · #5 ·
The factory tech found carbon buildup in the intake manifold. FCA replaced the engine which included a new turbocharger and EGR system. I suspect the old EGR system was letting too much diesel particulate get through.

Something to check, make sure nothing is clogging the air filter or intake at any point. Mice building a nest in my air intake really made the symptoms worse. The diesel seems to be sensitive to intake airflow and starts bogging down if it is restricted at all.

Does Jeep have a Customer Care system in Oz? If so, get them involved.

Good luck to you.
 

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The factory tech found carbon buildup in the intake manifold. FCA replaced the engine which included a new turbocharger and EGR system. I suspect the old EGR system was letting too much diesel particulate get through.

Something to check, make sure nothing is clogging the air filter or intake at any point. Mice building a nest in my air intake really made the symptoms worse. The diesel seems to be sensitive to intake airflow and starts bogging down if it is restricted at all.

Does Jeep have a Customer Care system in Oz? If so, get them involved.

Good luck to you.
Thank you for your response.. yes there is Customer Care here but Jeep hasn’t been helpful at all and seem to have nointerest in helping. I’ve been left to find a diagnosiswith a third party. Am I reading this correct ?? Is it possible I need a new engine ? And if so where do you do you think I stand with Jeep considering I’m out of the warranty period ?
 

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Discussion Starter · #7 ·
What model year is your Jeep?

Have you contacted Customer Care and requested to open a case? I have no idea where you stand if you're out of warranty. I still had warranty coverage on my engine due to the lawsuit and EcoDiesel settlement in the U.S.

I don't know that you will need a new engine. You may need new cylinder heads (that was the cure for the 2014 models), or you may just need to have carbon build-up cleaned out of the intake manifold. Try to find a good diesel engine mechanic.

Sorry, but I don't know what else to tell you.
 

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What model year is your Jeep?

Have you contacted Customer Care and requested to open a case? I have no idea where you stand if you're out of warranty. I still had warranty coverage on my engine due to the lawsuit and EcoDiesel settlement in the U.S.

I don't know that you will need a new engine. You may need new cylinder heads (that was the cure for the 2014 models), or you may just need to have carbon build-up cleaned out of the intake manifold. Try to find a good diesel engine mechanic.

Sorry, but I don't know what else to tell you.
I very much appreciate your help . I’ll pass on this information to an engineer when I can come one available. Once again thank you .
 

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I have the exact problem with my Jeep in Australia. Jeep can’t diagnose it and every engineer is too busy to look at it . I would be very grateful to know if you have the answer to the problem ?
Same here, took my 2012 CRD to dealerships in Sydney and one independent Jeep specialist, no idea what's wrong. Transmission is good, took it to the specialist.
My next step is stage1 carbon clean( basic spray technic while in idle. What have you tried?
 
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