2020 Paccar MX-13

Service bulletins

Technical service bulletins and other communications the manufacturer sent dealers about this vehicle. Ask a dealer for the full document by its number.

• 11009718EPA21 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.
• 11008567Fix As Fail Part number 2200138 DPF Pressure Sensor has been added to the parts table for the following PACCAR MX engines: EMY2021 MX13-1 EMY2022 MX13 EMY2020 MX13-2 EMY2021B MX13-1 Part number 2236409 NOx Sensor before catalyst been added to the parts table for PACCAR MX13-1 EMY2020 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.
• 11000768Diagnostic flow path added to the bulletin: Direction to follow "Valve train noise, excessive valve lash, and/or excessive wear metals in oil pan or oil filter." SRT codes B24-10A, B24-10B, and B24-10C included to replace previous SRT codes. Link to webcast "A New Approach to Maximizing Uptime: Prognostics" added to Links section.
• 10254150Chassis identified by PACCAR through the connected truck prognostic program have potential for failure due to camshaft wear. PACCAR will proactively contact the customers with chassis identified in this campaign. Chassis equipped with PACCAR MX13 EMY17-20 engines built prior to 04/19/2019 or MX13 EMY19-21 built on or after 04/20/2019 will be identified through the use of the connected truck prognostic program. Only trucks with an active standard warranty or active, applicable extended warranty will be included in this campaign.
• 10214855Info Only: LIN hybrid switch harnesses are available to order from PACCAR Parts.
• 10201965Fix-As-Fail 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.
• 10199943Emissions Recall - PACCAR MX-13 Engine Model Year 2015B engines require a software update to ensure emissions compliance for On-Board Diagnostic (OBD).
• 10194783Alternative PACCAR Approved Counterbore Tool Availability and new Indicator Block
• 10188549Fix-As-Fail Chassis with MY20/19 PACCAR MX-13 or MX-11 engines that received software updates to RC03/04 may set DTC P1710 and possibly P3797 under certain operating conditions. A unique P1710 troubleshooting procedure, specific to this condition, has b
• 10186777Non-Safety Campaign Certain PACCAR MX-13 EPA17 cylinder head bolts require an additional 90 rotation. This additional rotation significantly reduces the occurrence of cylinder liner fretting.
• 10186757Information Only PACCAR MX-13 and MX-11 Cylinder Head Leak Decay kits are now available. Procedures are available in RMI and supporting SRTs are published.
• 10185192Information Only: A new tool, torque adapter, required to support an upcoming campaign to retorque head bolts is available for dealer purchase.
• 10183725Non-safety retrofit campaign: Certain pre-production vehicles equipped with PACCAR MX-11 and MX-13 GHG2017 MY2020 engines and built between 07/25/2019 and 08/06/2019 must be updated to production levels. R2001 requires an engine software update and new emission label. These vehicles have an emissions exemption expiration date of 12/31/2020.
• 10183723Non-Safety Campaign Certain vehicles may have a faulty oil module filter cap. The plastic retaining tabs on the cap could break off and enter the engine oil. The remedy is to replace with an improved oil filter cap.
• 10180728Information only: The purpose of the bulletin is to inform dealers about the potential mismatch between the service interval of the installed OCV filter and the service interval published in the MX-11 and MX-13 operator's manuals. The operator's manuals only list the extended life filter service interval. A standard life interval filter may have been installed during manufacturing or during a service event.
• 10180727Non-Safety Campaign The retaining tabs that hold the bypass valve to the oil filter cap could break off and enter the engine oil. The oil filter cap will be replaced and an improved oil thermostat will be installed.
• 10180725Information only: Peterbilt has determined that certain Models 567 and 579 vehicles built between July 06, 2012 and March 27, 2020 with the PACCAR MX-13 Engine may experience an overspeed lamp illuminating during a smoke opacity test. If the lamp illuminates, it is not an indication of a problem with the vehicle but may cause the inspector to not allow the vehicle to operate in California.
• 10179375Information Only: The BPV linkage service repair kits are available for vehicles built with PACCAR MX-13 EPA 2013/2017 or MX-11 EPA2017 engine.
• 10179374Non-Safety Campaign: PACCAR has selected specific chassis with EPA2017 MX-13 engines for re-inspection. Selected chassis will have the camshafts replaced and take off parts sent to PACCAR for inspection. Customers were notified through Peterbilt Field Service personal contact.

Every Paccar MX-13 model year

Bars are owner complaints, dots mark years with recalls. Select a year to open its report.