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Discussion Starter · #1 ·
I've had my 2014 in 4 times on check engine light. Showing exhaust system codes. They went through entire DEF system and finally found crystals in or near DEF injector. Replaced injector. Only made it 40 miles before Ck engine is back on. Headed back to dealer this week. Started all this at maybe 3000 miles. 7400 miles now. Thoughts? Others experiencing this?
 

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I've had my 2014 in 4 times on check engine light. Showing exhaust system codes. They went through entire DEF system and finally found crystals in or near DEF injector. Replaced injector. Only made it 40 miles before Ck engine is back on. Headed back to dealer this week. Started all this at maybe 3000 miles. 7400 miles now. Thoughts? Others experiencing this?
I have a 2014 with 8200 miles, at dealer today for repair of MIL on and when accelerating at speeds over 40mph, the car starts rumbling, bucking, like it's not getting any gas. This is it's 4th trip in with MIL on. The 1st at 3500m came on after oil change by dealer(that forgot to reset the oil change warning, then went into limp mode 2 days later stating exhaust filter full, no warning beforehand. Had it towed there at my expense, over 20m, they had to perform a manual regeneration. 2 weeks ago, MIL on again, took to dealer, just reflashed it as did previously in June. I don't know what the problem is today, as I expect the techs don't either. Sorry, no help, just similar problem?
 

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Discussion Starter · #3 ·
I have a 2014 with 8200 miles, at dealer today for repair of MIL on and when accelerating at speeds over 40mph, the car starts rumbling, bucking, like it's not getting any gas. This is it's 4th trip in with MIL on. The 1st at 3500m came on after oil change by dealer(that forgot to reset the oil change warning, then went into limp mode 2 days later stating exhaust filter full, no warning beforehand. Had it towed there at my expense, over 20m, they had to perform a manual regeneration. 2 weeks ago, MIL on again, took to dealer, just reflashed it as did previously in June. I don't know what the problem is today, as I expect the techs don't either. Sorry, no help, just similar problem?
Today they said they forgot to reset it by driving it 50 miles at a constant speed. Going back next Monday for them to do that.
 

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Today they said they forgot to reset it by driving it 50 miles at a constant speed. Going back next Monday for them to do that.
Just spoke to the service manager, say they had to order a part, O2 sensor, had to be ordered through Chrysler Star(?)Group from California to be sent in 3 days. 2 weeks ago, he told me that on
Sat. am, dropped car off on Wed early aft., that part had to be ordered and in on Mon. to be replaced. When I picked it up on Tues, all they did was reflashed it. He states they are working with Star to repair this problem, as is a problem with more GC diesels. This issue is getting close to the 30 days without my new car of filing the lemon law replacement if this doesn't work. You may want to check your DEF level, as I have read the cars weren't full upon delivery. In another vehicle we have that's a Ford diesel truck, always use a new container due to crystallization, found that out the hard way on a trip in the middle of no where. Good Luck, praying for a permanent fix for all GC..
 

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Just to share my experience FWIW... Bought the JGC ED in March. The VA dealer delivered it with a full tank of DEF. Topped the DEF tank, in June with about 5k miles, at a Flying J in KY bulk pump dispenser for $2.79/gal. A FL dealer accomplished an oil service and tire rotation at about 8k miles. Oil service was one of four in four years provided free by MOPAR to reimburse the dealer. No DEF or related fuel issues encountered to date. Guess I'm lucky so far.
 

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I've had my 2014 in 4 times on check engine light. Showing exhaust system codes. They went through entire DEF system and finally found crystals in or near DEF injector. Replaced injector. Only made it 40 miles before Ck engine is back on. Headed back to dealer this week. Started all this at maybe 3000 miles. 7400 miles now. Thoughts? Others experiencing this?
i've had my jeep deisel in shop 9 times in 19,000 mls. o2 sensors, def wiring harness, twice. exhaust sensor, every sensor there is. its so bad, my dealers sevice manager told me to go elsewhere. and thats being polite. the dont carry parts, and and it vibrates horribly on when u back off on gas pedal. literally been in the shop for 27 days in 5 months. they keep denying theres aproblem cause they dont know whats wrong. got complaint filed with chrysler but some monkey says oh i'm so sorry. wish i could help. had bmw, mercedes, fords chevys. toyotas. these guys are a joke.
 

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Looks like problems are popping up with these now. I was going to ask if you guys are anticipating problems with carbon buildup etc. I know a lot of VW and BMW diesel guys are doing a lot of mods like DPF (down pipe filter) delete, EGR (exhaust gas recirculator) delete, and a retune of the ECU in order to prevent carbon buildup which kills the injectors and costs thousands. Not sure if your Jeeps have these components, but seems like the DEF is definitely causing a lot of the same problems. A lot of people end up doing a DEF delete to bypass the entire thing and for their cars it ends up in better reliability, mpg, and power.
 

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I have just over 4000 miles on mine and the check engine light has come on 6 times.

The first two they claimed it was a glitch.

The next one they said was that the vehicle needed an update to the turbo and transmission. I didn't know the check engine light came on when it detected a firmware update?

The last two had to do with the DEF. Of that they reset it the first time and said it was fixed. On the way home the light came on again.

They said they needed to reset it one more time and let their service manager drive it home for the night (they put 150 miles on it that night). The next morning they were going to check it one more time before having me pick it up. I asked them to do a manual check on the DEF injector before releasing it and they found a broken wire on the connector to the injector. They had to "repair" it, I don't know if they rigged it or replaced it though.

Well, The light has gone off again less than 50 mile later. So it's back to the shop again tomorrow.

Beginning to think this was a big mistake.
 

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I have just over 4000 miles on mine and the check engine light has come on 6 times.

The first two they claimed it was a glitch.

The next one they said was that the vehicle needed an update to the turbo and transmission. I didn't know the check engine light came on when it detected a firmware update?

The last two had to do with the DEF. Of that they reset it the first time and said it was fixed. On the way home the light came on again.

They said they needed to reset it one more time and let their service manager drive it home for the night (they put 150 miles on it that night). The next morning they were going to check it one more time before having me pick it up. I asked them to do a manual check on the DEF injector before releasing it and they found a broken wire on the connector to the injector. They had to "repair" it, I don't know if they rigged it or replaced it though.

Well, The light has gone off again less than 50 mile later. So it's back to the shop again tomorrow.

Beginning to think this was a big mistake.
What stinks is that they are simply running diagnostics and putting whatever parts the computer says to. It looks like these are going in the same direction as the BMW/VW diesels...delete the emissions if you can or get rid of it?
 

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I've had my 2014 in 4 times on check engine light. Showing exhaust system codes. They went through entire DEF system and finally found crystals in or near DEF injector. Replaced injector. Only made it 40 miles before Ck engine is back on. Headed back to dealer this week. Started all this at maybe 3000 miles. 7400 miles now. Thoughts? Others experiencing this?
I'm experiencing the same thing. Going in tomorrow morning to sit down with the Sales Manager about the Jeep. The malfunction indicator came on around 7000 and took it in and they said it was a bad DEF inducer/injector so they replaced that. Three days later light came on again and said it was a bad cat converter so they are going to replace it with a new one however it's 5-8 weeks back ordered. Said it wouldn't hurt to drive the Jeep until the part came in and that the DEF system was fixed and the "limp mode" 200 mile warning would not come on (I read about limp mode on here) About two weeks later with the light still on, another ding sounded and a message stating "DEF/see dealer" then the "200 miles/no restart" message came up.

I'm to the point of going down the Lemon law path since the salesman who sold it to me mentioned out of the 20 diesels he's sold, mine is the only one with these problems. You think a $47,000 jeep wouldn't have these problems but unfortunately it does, not wide spread but it is happening.

Does anyone have any reports of success with getting a replacement Jeep for these DEF reoccurring problems?
 

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Discussion Starter · #13 ·
yes they do. same problem 3 times & 4th time still bad. many problems but not the same 3 times yet.
Well, after replacing the DEF injector a light came on that said "Engine will not restart in 200 miles. Service DEF. See Dealer." My DEF is 75% full. I got it in and Chrysler told dealer to replace DEF, check injector. They did and all was fine. On their test drive the "200 mile no restart" light came back on. Chrysler now tells them to replace the DEF pump. They had checked the pump and the spray pattern was fine so they don't have confidence that will change anything but they're doing that now. I have a great dealer that is diligent; communicates and coordinates with Chrysler, etc. I'll keep everyone posted.
 

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I just mine back on Thursday after they had it for four days. They were told to check the injector for crystallization, pattern and volume. They drove it overnight on Wednesday of 124 miles. While doing the checks they claimed to find a "kink" in the line. I was told they fixed it but not sure what the "fix" is. Either they unkinked the line or replaced it, not sure. Drove it the 30 miles home from the dealer and drove it 15 miles to and from a store today when the "check engine" light came on again. I guess it's going back Monday morning.

What sucks is they have driven it more than me over the last three weeks and that includes my mileage to and from the dealer.

I'm at the point of seeing if I can have the DEF system removed and reprogramming the computer.

I now can see why Jeep isn't going to make this model next year.
 

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Discussion Starter · #15 ·
I just mine back on Thursday after they had it for four days. They were told to check the injector for crystallization, pattern and volume. They drove it overnight on Wednesday of 124 miles. While doing the checks they claimed to find a "kink" in the line. I was told they fixed it but not sure what the "fix" is. Either they unkinked the line or replaced it, not sure. Drove it the 30 miles home from the dealer and drove it 15 miles to and from a store today when the "check engine" light came on again. I guess it's going back Monday morning.

What sucks is they have driven it more than me over the last three weeks and that includes my mileage to and from the dealer.

I'm at the point of seeing if I can have the DEF system removed and reprogramming the computer.

I now can see why Jeep isn't going to make this model next year.
I think there are still doing diesel Grand Cherokees they have just said they won't put this engine in the Cherokee until their sales reach 15% in this model.
 

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Just spoke to the service manager, say they had to order a part, O2 sensor, had to be ordered through Chrysler Star(?)Group from California to be sent in 3 days. 2 weeks ago, he told me that on
Sat. am, dropped car off on Wed early aft., that part had to be ordered and in on Mon. to be replaced. When I picked it up on Tues, all they did was reflashed it. He states they are working with Star to repair this problem, as is a problem with more GC diesels. This issue is getting close to the 30 days without my new car of filing the lemon law replacement if this doesn't work. You may want to check your DEF level, as I have read the cars weren't full upon delivery. In another vehicle we have that's a Ford diesel truck, always use a new container due to crystallization, found that out the hard way on a trip in the middle of no where. Good Luck, praying for a permanent fix for all GC..
Update: after 5th visit to dealer last week with MIL on, replaced O2(?) sensor, first time car has regenerated on it's own 2 days after pick up. Car runs great, gas mileage back up to 24, after 2 months at 20. Hopefully this is the permanent fix.
 

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Discussion Starter · #17 ·
Update: after 5th visit to dealer last week with MIL on, replaced O2(?) sensor, first time car has regenerated on it's own 2 days after pick up. Car runs great, gas mileage back up to 24, after 2 months at 20. Hopefully this is the permanent fix.
That's good news. Do you happen to have or can you get more detail on the part name or number for the rest of us?
 

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An ODBII meter is inexpensive and the codes can be googled. I know the only code my vehicle has ever thrown was for the ambient temp sensor. Unfortunately a MIL will inhibit regen...... and then maybe go out before you get to the dealer. And as far as the DEF level is concerned..... I knew when I received my vehicle how much it would have..... and told the dealer that I would appreciate it if they would not top it off. Also I use it almost gone then put in 5 gal. So it's never full..... It seems to me that if you were to keep it topped off that you would either be throwing away or using DEF from an open container. And the vehicle would never have fresh DEF.
 
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