Fixing the Diesel Freeze
This bulletin applies to 2013-2018 RAM 2500/3500/4500/5500 trucks equipped with a 6.7L diesel engine. The MIL may be on accompanied by DTC P218F (reductant no flow detected) and/or P202E (diesel exhaust fluid reductant injector performance).
The fix involves installing an insulator over the DEF injector. The DEF injector cover kit is available under P/N 68564806AA.