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Service bulletin 14-008-22

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10214632
Published by NHTSA2022-06-27
Manufacturer's number14-008-22
Manufacturer's date2022-05-24
NHTSA componentENGINE; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM

NHTSA's summary

6.7L Cummins Engine High Pressure Fuel Injection Pump Identification Differences This bulletin provides information regarding the identification differences between the CP4 style high-pressure fuel injection pump, and the new CP3.3 style high-pressure fuel injection pumps installed under the Y78 recall. The following information is intended to eliminate confusion and possible noise complaints shortly after pump replacement or ECM reprogramming.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine, Fuel system, Fuel injection

Vehicles listed
RAM 25002019, 2020
RAM 35002019, 2020
RAM 45002019, 2020
RAM 55002019, 2020

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
18-099-222022-06-27. Service bulletin. Diesel Fuel Pump Failure and System Contamination This bulletin involves inspecting for fuel pump failure and fuel system contamination. Also fuel system cleaning and fuel system kit replacement. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P0087-00 - Fuel Rail Pressure Too Low. P008A-00 - Low Pressure Fuel System Pressure - Too Low. P0201-00 - Fuel Injector 1 Circuit/Open. P0202-00 - Fuel Injector 2 Circuit/Open. P0203-00 - Fuel Injector 3 Circuit/Open. P0204-00 - Fuel Injector 4 Circuit/Open. P0205-00 - Fuel Injector 5 Circuit/Open. P0206-00 - Fuel Injector 6 Circuit/Open. The customer may also notice the following:Engine will not start.
S1918000003 Rev.2020-11-30. Service bulletin. Revision A: Intermittent Engine Buck, Surge, or Misfire.
18-060-202020-09-28. Service bulletin. 6.7L Cummins Engine High Pressure Fuel Injection Pump Identification Differences This bulletin provides information regarding the identification differences in the high pressure fuel injection pumps between the new style Symetrical Cam design pump and the old syle Asymetrical Cam design used on the 6.7L Cummins in the 2019 and 2020 HD Trucks. The following information is intended to eliminate confusion and possible noise complaints shortly after pump replacement or ECM reprogramming.
90042762020-09-28. Service bulletin. PUMP, Fuel Injection This part requires a unique calibration to be programmed into the Engine Control Module (ECM). Failure to program the ECM with the correct calibration after installation of this pump will create an undesireable noise characteristic from the pump. Please be sure to follow all normally published Service Bulletins, and Service Information for the latest installation instructions, and programming steps.