2017 Paccar MX-11: common problems
The maker issued 26 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 26
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine and cooling | 0 | 0 | 13 |
| Powertrain | 0 | 0 | 5 |
| Equipment | 0 | 0 | 4 |
| Electrical system | 0 | 0 | 3 |
| Engine | 0 | 0 | 3 |
| Fuel system | 0 | 0 | 2 |
| Structure | 0 | 0 | 1 |
| Vehicle speed control | 0 | 0 | 1 |
| Wheels | 0 | 0 | 1 |
Comparison
What to check before buying
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- "Kenworth
Dealers should check the chassis list and SIR weekly for VIN changes. 2 chassis added to the chassis list. Peterbilt: Dealers should check the chassis list and SIR weekly for VIN changes. 10 chassis added to the…
- In an MX Engine is replaced, a TCS365 case must be opened to get a replacement engine emissions compliance…
In an MX Engine is replaced, a TCS365 case must be opened to get a replacement engine emissions compliance label and expert level rights for resetting and programming the engine control module.
- Canadian Registered Chassis Only, PACCAR MX-13 and MX-11 Fix-As-Fail Notification âFix-As-Fail â Per…
Canadian Registered Chassis Only, PACCAR MX-13 and MX-11 Fix-As-Fail Notification âFix-As-Fail â Per Environment and Climate Change Canada (ECCC) regulations and guidance (Canadian Environmental Protection Act…
- Information Only
Whenever a cylinder head is removed, a service cylinder head gasket must be installed. The production cylinder head gasket included with cylinder head installation kits should be discarded.
- Fix-As-Fail â Due to undersupply issues, only a limited supply of Diesel Exhaust Fluid (DEF) sensors are…
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…
- Emissions Recall - PACCAR MX-13 Engine Model Year 2015B engines require a software update to ensure…
Emissions Recall - PACCAR MX-13 Engine Model Year 2015B engines require a software update to ensure emissions compliance for On-Board Diagnostic (OBD).
- Alternative PACCAR Approved Counterbore Tool Availability and new Indicator Block
- Non-Safety Campaign - In an effort to optimize dash lamp performance, chassis that meet certain lamp time…
Non-Safety Campaign - In an effort to optimize dash lamp performance, chassis that meet certain lamp time performance criteria have been flagged for repairs.
- Information Only â PACCAR MX-13 and MX-11 Cylinder Head Leak Decay kits are now available
Procedures are available in RMI and supporting SRTs are published.
- Information Only
The BPV linkage service repair kits are available for vehicles built with PACCAR MX-13 EPA 2013/2017 or MX-11 EPA2017 engine.
- Information Only â The EGR Cooler sealing caps may deteriorate when used with heated cleaning solution
New caps made of stainless steel are now available as replacement parts.
- DEF tank covers may become loose and potentially crack on vehicles built before October 2019 with DEF tank…
DEF tank covers may become loose and potentially crack on vehicles built before October 2019 with DEF tank part number M86-6221-003**(TANK-DEF MEDIUM ASSY) and M86-6222-003**(TANK-DEF LARGE, ASSY). Resolution is to…
NHTSA lists 26 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2017 Paccar MX-11?
There are no owner complaints in the NHTSA data for this year; the data comes from 26 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2017 Paccar MX-11?
NHTSA lists 26 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2017 Paccar MX-11 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2017 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.