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took 2014 grand cherokee to dealer was told need exhaust pump and injecter,but not covered by warranty because i used PEAK DEFF BLUE witch is up to jeep specs and will be 3000 dollars anybody else have this problem
 

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#1. Go to another dealer.
#2. Call Chrysler Customer Care and file a complaint.

Do your research. Chrysler is covering this issue under warranty. It is very common. I've had a new DEF pump, DEF Injector, and Catalytic Converter...all under warranty with Chrysler's concern and apology. The issue is NOT caused by improper DEF.
 

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I am also having issues with this. I do know in the manual it says " Mopar 'OR EQUIVALENT' ". Theoretically there shouldn't be any warranty issues with it.... I will have my story soon.
 

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DEF chrystalizes if it doesn't flow adequately. The DEF system is controlled by a closed loop based on an NOx sensor reading after the Catalytic Converter. If this reading is incorrect, DEF flow can be curtailed and chrystals form in the DEF pump, lines, and injector which will cause the EVIC warning. I am of the belief that it all stems from a bad Cat. The Cat replacement ultimately cleared all my issues after the pump and injector replacement.
 

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DEF chrystalizes if it doesn't flow adequately. The DEF system is controlled by a closed loop based on an NOx sensor reading after the Catalytic Converter. If this reading is incorrect, DEF flow can be curtailed and chrystals form in the DEF pump, lines, and injector which will cause the EVIC warning. I am of the belief that it all stems from a bad Cat. The Cat replacement ultimately cleared all my issues after the pump and injector replacement.
I just wonder if there is any way to monitor the dosing of DEF using the Scangauge
 

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I just wonder if there is any way to monitor the dosing of DEF using the Scangauge
I haven't found any Xgauge codes for it. Its not in the list of standard parameters.

I just did a couple of hours of reading on DEF and learned some new things. Apparently contaminated DEF can cause damage to the copper substrate in the Catalytic Converter over time. DEF is 32.5% pure urea and 67.5% dionized water. Any contamination causes the water to ionize which cause salt chrystals to form and attack pumps, injectors, sensors and the copper substrate in the Cat.

The precise 32.5% blend also causes a 93% NOx reduction and losing that precise blend will drastically lower the NOx conversion rate. I think this is how the system knows that the DEF is not 32.5%. Water evaporation can cause the Urea concentration to change although I'm not sure how evaporation occurs in our Jeeps.

Precise control of dosing is critical also. I poorly controlled system may cause fouling of the Catalytic Converter as well. I suspect the latest TSB may be adjusting the control algorithm.

Knowing this...I wonder if bad DEF or improper dosing (poor control algorithm) isn't the big problem we are all seeing? The damage seems to occur over time.
 

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took 2014 grand cherokee to dealer was told need exhaust pump and injecter,but not covered by warranty because i used PEAK DEFF BLUE witch is up to jeep specs and will be 3000 dollars anybody else have this problem
Your owner's manual has a spec. for DEF. As long as the DEF you used has the same spec on the box, you should not have an issue. If the spec #s match, go above the dealer with your issue. Jeep HQ has been helpful to me on another issue.
 

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I have only used DEF from the dealer. I have noticed crystals near the filler cap. We have had the DEF injector replaced as it was over dosing. I assume crystals have been causing the injector to not seal properly. We had to wait about three weeks to get our injector since the previous available parts were known to have issues. Our dealer said they had an updated part on order and it would be several weeks before we were able to get one. I think our new one came in and was installed the last week of October. We also had all of the latest software updates applied and we have not had a single issue since the revised updated injector and flashes were installed. We have not replaced any other parts since new back in Feb 2014
we are currently approaching 10,000 miles
 
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