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Service bulletins for the 2014 Ram 4500

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

431 on file from NHTSA, as of 2026-10-19.

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By trouble code

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
90017622022-08-22. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. Part Description: Thermostat, Engine Issue Description: Important! There has been an application change to the Cummins turbo diesel thermostat. When replacing a thermostat confirm the correct replacement is choosen.~ 2010, 2011, and 2012 RAM Trucks 2500/3500/4500/5500 engine coolant operating temperature has been increased to 200 degrees requiring thermostat 68067109AA.~ 2009, 2013, and 2014 RAM Trucks 2500/3500/4500/5500 engine coolant operating temperature is 190 degrees requiring thermostat 68005464AA.~ These thermostats are not interchangeable and doing so will result in reduced engine performance.
18-096-162022-08-15. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. Flash: 6.4L Diagnostic And System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. NOTE: **This bulletin contains optional software update that should only be used in situations where the customer is specifically complaining of a Drone Noise, Shudder, Pulsation, or Vibration under light throttle applications while vehicle is operating in MDS/ECO mode. There will be two separate software options displayed on the wiTECH flash tab. The software file released for this condition contains the verbiage ?OPTIONAL?. The other file is the standard software that does not contain improvements for the Drone/Shudder concern. If for some reason the customer finds this shudder improvement objectionable, the PCM software may be returned/reflashed to the standard version. Both software versions will address the remaining conditions noted in the bulletin. A small number of customers may experience a surge, shudder or pulsation type sensation when driving on smooth road surfaces at highway speeds of 64-129 km/h (40-80 mph).** During normal diagnostics a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) present: · **P0335 - Crankshaft Position Sensor Circuit.** · P0300 - Multiple Cylinder Misfire, cold Idle misfire (DJ,D2 or DD vehicles only). · P030X - Cylinder Misfire (any cylinder). · P04D1 - Cooled EGR Temperature Sensor Circuit High. · P04D0 - Cooled EGR Temperature Sensor Circuit Low. · P2504 - Charging System Output High. · P0441 - Evap Purge System Performance. · P2066 - Fuel Level Sensor 2 Performance. · P0401 - EGR System Performance (DJ/D2 vehicles only). · P2096 - Downstream Fuel Trim System 1 Lean (DD/DP vehicles only). · P2098 - Downstream Fuel Trim System 2 Lean (DD/DP vehicles only). ·
18-028-162022-08-15. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; EQUIPMENT. Flash: 6.7L Diagnostic And System Improvements This bulletin involves selectively erasing and reprogramming the Engine Control Module (ECM) with new software. Several software improvements are available for vehicles equipped with a Cummins 6.7L turbo Diesel. NOTE: There will be a choice between 2 calibrations. One for vehicles that utilize an ammonia sensor and one for vehicles that have had the ammonia sensor removed. Be sure to select the correct software based on vehicle configuration. Prevent or reduce Malfunction Indicator Lamp (MIL) illumination when no defect is present for the following Diagnostic Trouble Codes (DTCs). These faults have been changed from a one trip fault to a two trip fault: · P0201 - P0206 - Fuel Injector X Circuit/Open Fault Codes. · P049D - Exhaust Gas Recirculation (EGR) Control Position Exceeding Learning Limit. Improvements to prevent or reduce Malfunction Indicator Lamp (MIL) illumination when no defect is present for: · **P229E - NOx Sensor Circuit - Bank 1 Sensor 2 (For non-ammonia delete systems only). · P229F - Aftertreatment NOx Sensor Circuit Performance - Bank 1 Sensor 2 (For non-ammonia delete systems only). · P22A7 - NOx Sensor Heater Circuit Performance - Bank 1 Sensor 2 (For non-ammonia delete systems only). · U059F - Invalid Data Received From NOx Sensor "B" (For non-ammonia delete systems only). · P2459 - Diesel Particulate Filter Regeneration Too Frequent. · P218F - Reductant No Flow Detected. · P242F - Diesel Particulate Filter Restriction - Ash Accumulation.** · P1C55 - NOx Sensor Intermittent - Bank 1 Sensor 1 (For ammonia delete systems only). · P205E - (Diesel Exhaust Fluid) Reductant Tank Temperature Sensor Circuit Intermittent (setting when the block heater is plugged in). · P20E8 - (Diesel Exhaust Fluid) Reductant Pressure Too Low. · U110E - Lost Ambient Temperature Message. · U3017 - Control Module Timer/Clock Performance.
18-038-142022-08-15. Service bulletin. ENGINE AND ENGINE COOLING. Engine Shutdown Timer Feature Function Improvement This bulletin involves setting the Engine Auto Shutdown Time Limit in the EVIC.
18-034-14 REV. A2022-08-15. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT; ELECTRICAL SYSTEM. P0520- Engine Oil Pressure Sensor Circuit This bulletin involves replacing the oil pressure sensor with a revised part. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find that the following Diagnostic Trouble Code (DTC) has been set: P0520 - Engine Oil Pressure Sensor Circuit
90036932022-08-08. Service bulletin. ENGINE AND ENGINE COOLING. Gasket, Rocker Cover If you are replacing this gasket for an oil leak, please call Steve Alvarado @ (866) 799-1695 ext: 4720271 to arrange for Fastrac shipper
18-079-152022-08-08. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING. Flash: 6.7L Diagnostic And System Improvements This bulletin involves selectively erasing and reprogramming the Engine Control Module (ECM/PCM) with new software. Several software improvements are available for vehicles equipped with a Cummins 6.7L turbo Diesel. WARNING:There will be a choice between 2 calibrations. One for vehicles that utilize an ammonia sensor and one for vehicles that have had the ammonia sensor removed. Be sure to select the correct software based on vehicle configuration. Prevent Or Reduce Malfunction Indicator Lamp (MIL) Illumination When No Defect is Present For The Following Diagnostic Trouble Codes (DTCs). These Faults Have Been Changed From A One Trip Fault To A Two Trip Fault: P0201 - P0206 - Fuel Injector X Circuit/Open Fault Codes. P049D - EGR Control Position Exceeding Learning Limit. Improvements To Prevent Or Reduce Malfunction Indicator Lamp (MIL) Illumination When No Defect Is Present For: ? P205E - (Diesel Exhaust Fluid) Reductant Tank Temperature Sensor Circuit Intermittent (setting when the block heater is plugged in). ? P20E8 - (Diesel Exhaust Fluid) Reductant Pressure Too Low. ? U110E - Lost Ambient Temperature Message. ? U3017 - Control Module Timer/Clock Performance. ? P0087 - Fuel Rail Pressure Too Low. ? P0544 - Exhaust Gas Temperature Sensor Circuit - Sensor 1/1. ? P2281 - Air Leak Between MAF And Throttle Body. ? P0128 - Thermostat Rationality. In low ambient temperatures. ? U1421 - Implausible Ignition Key Off Time Received. ? P202E - Diesel Exhaust Fluid (DEF) Reductant Injector Performance. ? P20EE - SCR NOX Catalyst Efficiency Below Threshold - Bank 1. ? P2002 - Diesel Particulate Filter Efficiency Below Threshold. ? P0604 - Internal control Module RAM Error. This DTC may be caused by enabling the remote throttle feature via the EVIC, and it will be accompanied by a ?service electronic throttle control? message in the EVIC. ? SCR Efficiency scan tool test improvement.
68085740A$2022-07-25. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING:ENGINE. Part Description: Engine Out NOx Sensor 1/1, System Out NOx Sensor 1/2 Issue Description: If you receive a DJ/D2 with a MIL illumination and DTC P229F, please do not replace any parts at this time. Cummins Engineering is currently investigating the root cause of the concern and is requesting to visit a dealership with this DTC to gather valuable information. Please contact Christine Donegan at (866) 799-1692 ext 1257~ If causal part replacement is the System Out NOx sensor (Bank 1, Sensor 2) PNs 68085740AA, or 68197109AA, please file claim under LOP 250810. If for the Engine Out NOx Sensor (Bank 1, Sensor 1) use LOP 250809.
0900416 REV A2022-07-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. This bulletin involves replacing the engine assembly.
0900122 REVA2022-05-31. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; EXTERIOR LIGHTING. Cummins 6.7L Turbocharger Actuator - X93 Warranty Extension This bulletin involves replacing the turbocharger actuator with an updated actuator. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technicianmay find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: U010C - Lost Communication With Turbocharger/Supercharger Control Module. P003A - Turbocharger Boost Control Module Position Exceeded Learning Limit. P00AF - Turbocharger Boost Control Module Performance. P0046 - Turbocharger Boost Control Circuit Performance. P0234 - Turbocharger Overboost Condition.
S1709000010 RevB2022-05-31. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE. Customer complaints may include abnormal engine noise, rough idle, lack of power, misfire. Upon investigation, it may be found that there is excessive camshaft lobe wear/lifter wear (roller failure) on one or more cam lobes and that camshaft/lifter replacement is necessary.
S1809000007 Rev.2021-04-26. Service bulletin. ENGINE AND ENGINE COOLING. Customer complaint may include engine oil leak/consumption.
S20080001132020-09-28. Service bulletin. ENGINE; ELECTRICAL SYSTEM. No Start Intermittently, Vehicle Requires Multiple Keyless Push To Start Attempts To Start Vehicle
09-011-202020-08-24. Service bulletin. ENGINE AND ENGINE COOLING. 6.7L New Oil Usage Information This bulletin provides information regarding the correct oil grade to use on the 6.7L Cummins used in the 2019 and newer HD Trucks. The following information is intended to eliminate confusion.
S20090000032020-07-27. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER. Turbocharger vs Turbocharger Actuator Replacement
18-042-202020-06-22. Service bulletin. FUEL SYSTEM, DIESEL; ELECTRICAL SYSTEM; EQUIPMENT; ENGINE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/PCM) with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following DTCs have been set:There will be a choice between two calibrations. One for vehicles that utilize an ammonia sensor and one for vehicles that have had the ammonia sensor removed. Be sure to select the correct software based on vehicle configuration.Improvements to prevent or reduce MIL illumination when no defect is present for:P2201 - Aftertreatment Nox Sensor Circuit Performance - Bank 1 Sensor 1(Ammonia delete systems only). P229F - Aftertreatment NOx Sensor Circuit Performance - Bank 1 Sensor 2. P20EE - SCR NOx Catalyst Efficiency Below Threshold - Bank 1(New Improvements for ammonia delete systems only). P202E - Diesel Exhaust Fluid (DEF) Reductant Injector Performance(New Improvements for ammonia delete systems only). P218F - Reductant No Flow Detected. P1C55 - NOx Sensor Intermittent - Bank 1 Sensor 1. U0001 - CAN C Bus. P229E - NOx Sensor Circuit - Bank 1 Sensor 2(Non-ammonia delete systems only). U059F - Invalid Data Received From NOx Sensor "B"(Non-ammonia delete systems only). P22A7 - NOx Sensor Heater Circuit Performance - Bank 1 Sensor 2(Non-ammonia delete systems only). P2459 - Diesel Particulate Filter Regeneration Too Frequent. P242F - Diesel Particulate Filter Restriction - Ash Accumulation. P205E - (Diesel Exhaust Fluid) Reductant Tank Temperature Sensor Circuit Intermittent (setting when the block heater is plugged in). P20E8 - (Diesel Exhaust Fluid) Reductant Pressure Too Low. U110E - Lost Ambient Temperature Message. U3017 - Control Module Timer/Clock Performance. P0087 - Fuel Rail Pressure Too Low. P0544 - Exhaust Gas Temperature Sensor Circuit - Sensor 1/1. P2281 - Air Leak Between MAF And Throttle Body.
OD553412019-07-15. Service bulletin. EQUIPMENT; ENGINE. Vehicles Eligible For CSN U07 And V08, V11 or V16 Important Update To U07 Dealer Instructions
549352019-07-15. Service bulletin. ENGINE; EQUIPMENT. Sensor-nitrous oxlde
553112019-07-15. Service bulletin. EQUIPMENT; ENGINE. Damper-Steering
553222019-07-15. Service bulletin. EQUIPMENT; ENGINE. Head-Cylinder
553242019-07-15. Service bulletin. ENGINE. Head-Cylinder
552212019-07-15. Service bulletin. ENGINE; EQUIPMENT. Engine Oil- OW20
550962019-07-15. Service bulletin. ENGINE. Engine Oil- OW20
549312019-07-15. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. TAILPIPE - EXHAUST
90033572019-07-15. Service bulletin. ENGINE; EQUIPMENT. ADAPTER, Engine Oil Filter (Pentastar V6) Engineering is seeking information regarding OFA leaks. Questions/info can be directed to: Bob Jackson (248) 944-0466 - bob.jackson@fcagroup.com Ron Dallison (248-292-9510) ron.dallison@fcagroup.com Joe Lovell (734) 309-6467 - joe.lovell@fcagroup.com If no response in 15 minutes, proceed with repair. All vehicles equipped with a 3.2L or 3.6L except for model year 2014 vehicles with leak concern: 1) Ensure the Oil Filter Adapter (OFA) Cap O-ring is seated in the proper groove in the cap and not damaged or cut. 2) If replacing the (OFA) due to a leak detected between (OFA) and block. Ensure the torque on the 5 bolts are torqued to 12nm. If not record the actual values, torque to 12nm and contact the FCA employees listed below. 3) Remove the (OFA) and replace the O-ring and gaskets only (Kit #68191356A$), NOT THE OFA. 4) If oil was drained, add oil dye to ensure the leak is repaired. For model year 2014 vehicles replace the Oil Filter Adaptor.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.