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Showing a catalyst dosing unit fault. Any idea on what could be ... There is also a DEF filter that is easy to change. GrapeApe, Apr 14, 2014. GrapeApe, Apr 14 ... Two bolts, a gasket, and an insulator... one thing Cummins definitely got right was these dosing injectors. WitchingHour, Apr 15, 2014. WitchingHour, Apr 15.
Posted - 07/08/2021 : 6:20:58 PM. 4UZABRDT0HCHR7074 Freightliner/Thomas B2 Cummins ISB 6.7 CM 2350 ESN 73944784 Built 02-16 Have an active code 4156. “Aftertreatment 1 Diesel Exhaust Fluid Dosing Unit Heater Relay Circuit – Voltage Below Normal or Shorted to Low Source”. We are good thru the relay that is mounted near the firewall ...
Showing a catalyst dosing unit fault. Any idea on what could be ... There is also a DEF filter that is easy to change. GrapeApe, Apr 14, 2014. GrapeApe, Apr 14 ... Two bolts, a gasket, and an insulator... one thing Cummins definitely got right was these dosing injectors. WitchingHour, Apr 15, 2014. WitchingHour, Apr 15 ...
Hey, try removing suction line from pump and hook up rubber hose with clamp and run it into a jug of def. If that works then I would inspect suction line and pick up in tank for cracks. Also remove doser when doing pressure test to make sure it's not dumping the pressure out of the nozzle. Reply. Rjpierma24.
DEF Dose Control. This bulletin applies to 2013-2014 3500 series Ram Cab Chassis vehicles equipped with a 6.7L Cummins turbo diesel engine, for the purpose of selectively erasing and reprogramming the Doser Control Unit (DCU) with new software. Software improvement are available for the diesel exhaust fluid (DEF) system.
Cummins Filtration DEF All-in-One Kits for DEF Dispensing include motor, pump , nozzle, hose, and adapter 3970399 - Tote Electric Kit 3970398 - Tote Air Kit 3970403 - Drum Electric Kit 3970402 - Drum Air Kit Optional flow meter - 3970397 All materials meet ISO requirements for DEF compatibility.