Dodge Repair Questions? Ask a Mechanic for Answers ASAP
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The DEF fluid has a shelf life and can go bad and you not know it.. If it wa stested and bad then it will all need to be cleaned and new DEF fluid installed and bleed and retest to see if your issues are still there..
You will need to add now fluid and purge the system with a scantool to get all the bad fluid out of the lines and dosing injector so you don't contaminate the system.. Once it's purged then put it all back together and retest to see if your issues are resolved..
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