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Recipe - Ram ProMaster 3.0L EcoDiesel I4 (2014-2016)

Specific Fix build

Reliability tier: aggregated - verify before ordering, see /disclosure/

The DEF/SCR diagnosis chain on the rare F1C ProMaster diesel: cap and fluid quality first, pump and injector mid-tier, the $3,000 tank last. Repaired, never defeated.

Parts

• F1C DEF Filler Cap (68145555AD, current) - contaminated DEF enters through the cap (qty 1)
• F1C DEF Supply Pump (68438682AA, current) - mid-tier hardware when the pump is condemned (qty 1)
• F1C DEF Dosage Module Injector (68232842AD, current) - dosing injector per DTC (qty 1)
• F1C DEF Tank (52022431AM, current) - structural damage/crystallization only (qty 1)

Install order

1. DEF quality and level-sensor checks; cap first (cheap and real)
2. read DEF/NOx DTCs; inspect for crystallization at filler and lines
3. pump and injector per findings
4. tank replacement for structural damage/crystallization (last resort)

Expected outcome

Countdown cleared and derate released after the failing item is serviced.

Parts budget

About $60-$3,050 in parts. It depends on what the diagnosis finds; each option below is what you buy together. Prices marked "at Dave's" are Dave's Auto Center's, the same as in his store; the others are approximate prices from OEM and maker catalogs, rounded (a manufacturer's list price can run higher). Parts only, no labor.

• about $60: F1C DEF Filler Cap (68145555AD, current) (about $60)
• about $680: F1C DEF Supply Pump (68438682AA, current) (about $680)
• about $320: F1C DEF Dosage Module Injector (68232842AD, current) (about $320)
• about $3,050: F1C DEF Tank (52022431AM, current) (about $3,050)