E330
Service Bulletin/Repair Instructions
The attached procedure has been updated to improve clarity.
Vehicle report
2021 PACCAR MX-11
Service bulletins
13 bulletinsTechnical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
CE031
Other
DPF Delta Pressure Sensor part number 2200138 for MX-11 engines has been added to this warranty policy.
98-034
Service Bulletin/Repair Instructions
A new Level 1 required MX-11 and MX-13 Oil Pressure Switch Breakout Harness is now available for order.
E273
Emissions
Part number 2300479 Engine Control Module has been added to the parts table for PACCAR MX-11EMY2021. Part number 2302109 Engine Control Module has been added to the parts table for PACCAR MX-11 andMX-13 EMY2023. Per Environment and Climate Change Canada (ECCC) regulations and guidance (Canadian Environmental Protection Act, 1999 (CEPA)), a letter has been provided to owners of Canadian registered chassis that provides a list of emissions components that have been reported (to ECCC) as having a defect."
E327
Emissions
PSB E327: PACCAR MX-11 and MX-13 OBD Software Update Vehicles equipped with PACCAR MX engines with Engine Software Version NA202 or NA206 may display a dash STOP lamp incorrectly. PCI-2 software on these chassis must be reverted from NA202 to NA201 (Pack 2 injectors) or from NA206 to NA191 (Pack 1 injectors) to prevent incorrect STOP lamp display.
E318
Service Bulletin/Repair Instructions
EPA21 Pack 2 Injectors Newly designed fuel injectors are available for EPA2021 compliant PACCAR MX-series engines to optimize engine performance. Injectors must be replaced as a full set (6 injectors) and associated software must be updated at the same time.
E317
Service Bulletin/Repair Instructions
Certain chassis that completed the E310 software update and received the specified in-tank additive may require additional doses of the in-tank additive. This bulletin covers additional additive eligibility criteria and filing.
02-172
Service Bulletin/Repair Instructions
Info Only: LIN hybrid switch harnesses are available to order from PACCAR Parts.
E290
Service Bulletin/Repair Instructions
An EPA21 MX fuel injector cleaning procedure is available. The attached document details the fuel injector cleaning procedure and helps to determine when it is necessary to replace the injectors.
43-071
Service Bulletin/Repair Instructions
Fix-As-Fail â Due to undersupply issues, only a limited supply of Diesel Exhaust Fluid (DEF) sensors are available. As a temporary solution, after PACCAR confirms a DEF sensor is not available, a temporary software update will allow a vehicle to continue operation with a failed DEF sensor by disabling the DEF sensor diagnostics.
E269
Service Bulletin/Repair Instructions
Emissions Recall - PACCAR MX-13 Engine Model Year 2015B engines require a software update to ensure emissions compliance for On-Board Diagnostic (OBD).
S005
Service Bulletin/Repair Instructions
Information Only â C hassis equipped with MY2021 B EPA emission s standards will be shipped through atleast the end of the 2021 calendar year without particulate matter (PM) sensors installed .
98-012
Service Bulletin/Repair Instructions
Alternative PACCAR Approved Counterbore Tool Availability and new Indicator Block
Reading this report
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.