P20EE etc....FCA's new RRT - Jeep Garage - Jeep Forum

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Old 10-11-2015, 07:34 PM
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P20EE etc....FCA's new RRT

Wk2Jeeps just added this one:

http://www.wk2jeeps.com/tsb/tsb_wk2_1802315c.pdf

As I posted in the other thread, mine is going in with the P20EE (new cat!) next Friday and this just popped up...thankfully!

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Old 10-11-2015, 08:10 PM
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Re: P20EE etc....FCA's new RRT

I don't understand what this means. I just had my CAT replaced two weeks ago... Now I have the egr valve issue. Maybe I need to print this out and give it to the dealer?
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Old 10-12-2015, 04:00 PM
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Re: P20EE etc....FCA's new RRT

That RRT contains a reflash plus additional items to be worked on in the event of P20EE and some other codes.

Definitely take that in to your dealer when you go in for the EGR issue
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Old 10-13-2015, 09:47 AM
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Re: P20EE etc....FCA's new RRT

I just dropped off my 14' CRD with almost 41K miles on it for P20EE, since im over the 36K mile warranty period I'm being told that Iím looking at $125 / hour in labor costs to repair whatever they find is wrong. I think this is absolute BS since the system is known to be faulty. I asked if there is any refund if FCA does some sort of recall and was advised that the expense is on me one way or another. Iím generally not vocal on most little issues Iíve had, but now Iím starting to get pissed

Anyone know if there is any other recourse here? I feel like Iím being robbed for buying a faulty product.

Love my JGC, but since new I've been in every other month for something faulty
MY GDE tune is on hold with them until i get this sorted, but these experiences leave me feeling like I should delete the entire damn system and roll the dice as I donít feel protected by standard or my extended warranty
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Old 10-13-2015, 11:50 AM
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Re: P20EE etc....FCA's new RRT

This is an emissions thing. Emissions is under a much longer warranty.
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Old 10-13-2015, 03:14 PM
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Re: P20EE etc....FCA's new RRT

As Pine Lure Tom stated, this is an emissions problem. Don't let the dealer BS you!!!
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Old 10-13-2015, 10:09 PM
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Re: P20EE etc....FCA's new RRT

With all the VW emission maheim, i would be surprised if chrysler is willing to challenge emission issues right now....they're well on their way to an emissions related fiasco as well with defective CAT's and related def systems on the 14's - next stop....fox news.


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Old 10-15-2015, 07:24 PM
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Re: P20EE etc....FCA's new RRT

Has anyone figured out why the cats fail in the first place? I wonder of the internals use less rare materials like platinum and the materials melts after frequent regen cycles. Isn't urea and fuel used to burn soot?
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Old 10-15-2015, 07:32 PM
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Re: P20EE etc....FCA's new RRT

Quote:
Originally Posted by stician View Post
Has anyone figured out why the cats fail in the first place? I wonder of the internals use less rare materials like platinum and the materials melts after frequent regen cycles. Isn't urea and fuel used to burn soot?
The soot is burned within the DPF during the regeneration cycle. Fuel is injected during the exhaust stroke to increase the DPF temperature.

The SCR is downstream of the DPF and its purpose is to reduce NOX levels by injecting DEF into the SCR.
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Old 10-15-2015, 07:37 PM
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Re: P20EE etc....FCA's new RRT

Quote:
Originally Posted by 2012 Summit View Post
The soot is burned within the DPF during the regeneration cycle. Fuel is injected during the exhaust stroke to increase the DPF temperature.

The SCR is downstream of the DPF and its purpose is to reduce NOX levels by injecting DEF into the SCR.
So the failing part has been DPF right? Is it a design flaw, cheap materials or did Jeep reduce EGR to limit soot and extend regen? Just trying to understand.

I have almost 4000 miles since the DPF replacement and GDE tune went it afterwards.
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Old 10-15-2015, 09:05 PM
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Quote:
Originally Posted by stician View Post
So the failing part has been DPF right?
No. The failing part has been the SCR catalyst (and/or DEF injector for that benighted system).

Quote:
I have almost 4000 miles since the DPF replacement
Did you actually have a DPF failure and replacement? That would be remarkable on an NA EcoDiesel. Or did you have an SCR cat failure and replacement (which is the P20EE issue)?

As mentioned earlier, the DPF and the SCR/urea are completely separate, unrelated systems. The diesel particulate filter, the DPF, ...filters diesel exhaust particulates... at the expense of performance degrading backpressure and fuel economy-robbing soot burnoffs. The Selective Catalytic Reduction (SCR) system selectively induces a reduction reaction on invisible NOx in the exhaust gas by consuming urea as a reductant to produce nitrogen, water, and a cat urine smell in your garage. This selective reduction reaction is catalyzed in the SCR catalyst that has been failing.

The EPA is literally to blame if your vehicle won't work if the SCR or DEF injector is malfunctioning. The system does nothing but react with exhaust gases and could otherwise just be removed with no consequence for the vehicle. However, the EPA mandated the euphemistically-termed "inducement" code in the firmware to disable the vehicle. This "broken by design" aspect is one thing that is ameliorated by the GDE tune.
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Old 10-15-2015, 10:40 PM
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Re: P20EE etc....FCA's new RRT

Thanks for explaining. I had a P20EE and SCR replaced. Then I added the GDE tune.
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