E334
Emissions
Certain vehicle model year 2022 Kenworth chassis equipped with Engine Model Year (EMY) 2021 PACCAR MX engines may have an exempt engine label installed.
Vehicle report
2022 PETERBILT 320
Service bulletins
3 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.
32-025
Service Bulletin/Repair Instructions
Info Only Unnecessary starter replacements can result from customer complaints regarding engine starting issues. A new Starter Troubleshooting Guide has been created to provide a comprehensive list of starting system checks, which should reduce unnecessary starter replacements and associated warranty claims. Engine starting system warranty claims now require a completed Starter Checklist, a Battery Pack Midtronics Report, and a Cable Drop Midtronics Report. Claims filed without these documents may be denied.
CE019
Service Bulletin/Repair Instructions
07/24/2024 - Updated the Emissions Warranty Coverage tables. Added new coverage tables and PartsLists for GHG/Vehicle Parts and ZEP/BEV Parts. 03/07/2022 - New Emissions bulletin which consolidates older versions and accounts for new CARBemissions requirements that go into effect with Engine Model Year 2022.
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.