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Service bulletin 1805421

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 id10221328
Published by NHTSA2022-09-26
Manufacturer's number1805421
Manufacturer's date2021-06-09
NHTSA componentFUEL SYSTEM, DIESEL:DELIVERY:FUEL PUMP

NHTSA's summary

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.

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

Fuel system, Fuel pump

Trouble codes named

P0087, P008A, P0201, P0202, P0203, P0204, P0205, P0206

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.

Recalls for the same vehicles and component
21V8800002021-11-12. FUEL SYSTEM, DIESEL:DELIVERY:FUEL PUMP

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
749122022-10-17. Service bulletin. Fast Feedback Program - 6.7L Cummins Engine - 2019 - 2022 HD Ram & Fuel Injection Pump - All Models (Rev. G)
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.