WenmarOpen by Wenmar Pro

Service bulletins for the 2019 Mack LR

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.

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

By type

By component

By trouble code

Only bulletins with component: Fuel system are shown. Show all

Bulletins, newest first
K146374122019-02-19. Service bulletin. FUEL SYSTEM, GASOLINE. Diagnostic Trouble Codes (DTC) P0194-00 - Fuel Rail Pressure Sensor, Circuit Erratic,
K010296372019-02-19. Service bulletin. FUEL SYSTEM, GASOLINE. Diagnostic Trouble Codes (DTC) P0087 Fuel Rail/System Pressure To Low, P016F Closed Loop Fuel Pressure Control At Limit - Pressure Too Low, P228F Fuel Pressure Regulator Exceeded Learning Limits - Too High; Damaged Lip Seal On Secondary Fuel Filter; Possible Uneven Operation - US17+OBD16 And Newer Emissions (Common Rail Fuel System), Model Year 2018 And Newer
K010296372019-02-19. Service bulletin. FUEL SYSTEM, GASOLINE. Diagnostic Trouble Codes (DTC) P0087 Fuel Rail/System Pressure To Low, P016F Closed Loop Fuel Pressure Control At Limit - Pressure Too Low, P228F Fuel Pressure Regulator Exceeded Learning Limits - Too High; Damaged Lip Seal On Secondary Fuel Filter; Possible Uneven Operation - US17+OBD16 And Newer Emissions (Common Rail Fuel System), Model Year 2018 And Newer
K146374122019-02-19. Service bulletin. FUEL SYSTEM, GASOLINE. Diagnostic Trouble Codes (DTC) P0194-00 - Fuel Rail Pressure Sensor, Circuit Erratic, Intermittent And/Or P016E-00 Closed Loop Fuel Pressure At Control Limit, Pressure Too High - US17+OBD16 (Common Rail Fuel System) Emissions And Newer; Model Year 2017 And Newer
K146374122018-12-17. Service bulletin. FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. Diagnostic Trouble Codes (DTC) P0194-00 - Fuel Rail Pressure Sensor, Circuit Erratic, Intermittent And/Or P016E-00 Closed Loop Fuel Pressure At Control Limit, Pressure Too High - US17+OBD16 (Common Rail Fuel System) Emissions And Newer; Model Year 2017 And Newer
K233150312018-12-17. Service bulletin. FUEL SYSTEM, GASOLINE. Fuel Tank Strap Insulator Design Update; Fuel Tank Strap Appearance Changed
K210520702018-07-16. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE. Intermittent Occurrences Of Very Brief Loss Of Power, Engine Stumble Or Hiccup Lasting Much Less Than A Second, Most Frequently Between 1500 And 1700 RPM, No Diagnostic Trouble Codes ( DTC ) Generated - All Common Rail Fuel System Chassis - US17+OBD16 And Newer Emissions, Commonly Model Year 2018 And Newer
K232320432018-07-16. Service bulletin. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL. Mack Chassis - Diagnostic Trouble Code ( DTC ) P02FA Illuminating The Malfunction Indicator Lamp (MIL) - US17+OBD16 And US17+OBD18 (GHG17) Emissions (With Common Rail Fuel System), Commonly Model Years 2018 And 2019
K559052212018-07-16. Service bulletin. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL. Mack Chassis - Diagnostic Trouble Code ( DTC ) P0420 Illuminating The Malfunction Indicator Lamp (MIL) - US17+OBD16 And US17+OBD18 (GHG17) Emissions (Common Rail Fuel System) - Commonly Model Years 2018 And 2019
K010296372018-06-18. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING. Secondary Fuel Filter Damaged Lip Seal; High Pressure Fuel System Learning And Control Limit and System Pressure Diagnostic Trouble Codes (DTC), Possible Uneven Operation - US17+OBD16 And Newer Emissions (Common Rail Fuel System), Commonly Model Year 2018 And Newer
K422001142018-05-29. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL. Mack Chassis - Diagnostic Trouble Code ( DTC ) P009E-73 - Fuel Pressure Relief Control Performance / Stuck Off - US17+OBD16 And US17+OBD18 ( GHG17 ) Emissions (With Common Rail Fuel System), Commonly Model Years 2018 And 2019
FSB284-0672018-04-23. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. ECM and ACM, Reprogramming, OBD2017 and OBD2018
K146374122018-03-12. Service bulletin. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL. Diagnostic Trouble Code ( DTC ) P0194 - 00 - Fuel Rail Pressure Sensor ( RPS ), Circuit Erratic, Intermittent - US17 ( GHG17 ) Emissions And Newer ( Common Rail Fuel System ); Common Model Years 2017 And 2018.Changed repair instructions to reflect new procedures

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