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I live in NJ and purchased this Grand Cherokee Limited from Chrysler Jeep Dodge of Paramus on route 4. I never felt good about that place I think they ripped me off for service that should have been done under warrantee. They replaced the catalytic converter at about 15K miles and I have had intermittent problems with the DEF system ever since. The car now has 30 K miles and I brought it back to Precision on 23 in Butler for the Auto Park recall I had to sit there for about 4 hours while they downloaded the software.

Two days later the check engine light came on and it said to bring it back to the dealer to service the DEF system a message I have seen many times before the cat was replaced. I brought it back to Precision and they replaced the DEF injector the error was P20E8 Reductant Pressure too low. They said the injector had dried DEF but I never saw it they replaced the injector. Two days later the the check engine light came on and the error code is the same P20E8 I got it checked at Auto Zone and ordered a tester so I can see the messages myself. The Jeep is with Precision now updates to follow.
 

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I'm not fully educated on these 3.0 diesels yet... But I've had several diesel trucks.

If an injector had dried DEF, 2 things come to mind. 1) how did def dry in the injector, 2) it's under warranty, why not replace the injector. I would push for more explanation of problem & solution to fix.
 

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All I can say is 2 1/2 years ago when all the trouble started with my 2014, I had called them because my GC was inoperable. They are/were the most nasty SOB'S out there. They didn't have diesel mechanics and DON'T know what they're doing. Never went there and had FRANKLIN SUSSEX jeep do my work. Happy customer since and never a return visit once all was straightened out. Nothing out of pocket what so ever. Run from there and never look back.
 

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That is probably the most important thing with these- making sure your dealer is 'customer oriented' and they have the techs that can work on them!
 

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I'm am having similar issues. I have 2014 as well. Had the cat replaced shortly after buying it. So since then it's been nothing but problems. I literally just went through my invoices and I have 11 different ones where each one it was there for the check engine light being on. Since election day it has been in the shop 4 times for the light coming on. I have had the def heater replaced 3 times. And now the light is BACK on. I'm so tired of dealing with this. I don't know what to do. I'm down here in Annapolis and they don't have many ppl who can work ok diesels. The jeep just hit 40k miles and I'm so frustrated. I love my GC other then the issues. I don't want to get rid of it but idk what to do I am going to copy all the work orders and write Chrysler. Last time it was in the shop the code that is on is P05ED-00 they said they scanned comp found that code. Performed electrical test contacted star everything tested good. Reset def pump and heater control circuit and road tested. After they did that it hasn't even been 1 month and it's back on. Anyone ideas?
 

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Can you find a dealer, perhaps in a more rural part of the area you live in that also sells the 1500 Ram EcoDiesels? You may have more luck getting your issue resolved. The dealership I used for my cat replacement (and a wheel bearing replacement before that) is on the edge of town and sells tons of diesel trucks to the farmers who live out near there and they were readily able to do the cat repair and I've not had a single problem with mine since then. I go to the original chain of dealerships I bought from for oil changes (I bought a number of oil changes from them when I bought the vehicle) but when I've needed actual repairs, I trust this other place. I don't know if that's possible where you live, but it is a shot.
 
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