2018 Peterbilt 579 Engine Problems
- Complaints
- 1about this part
- Share
- 14%of 7 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the engine of the 2018 Peterbilt 579, 14% of the 7 complaints for this model year.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“This vehicle about 6-8 weeks ago started throwing codes for all systems above (over 100 codes). This issue affected all systems of the vehicle including but not limited to the speed and braking of the vehicle, plus the fuel system and adaptive driving systems. We took it to the dealer Performance Peterbilt in Tifton, GA. They cleared the codes and said they resolved it by replacing a NOX sensor. We left the repair shop and within 50-100 miles the exact same issue started up again. …”
NHTSA complaint #11624162, filed 2024-11Related service bulletins
- 11037541Sep 11, 2026"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…
- 11037451Sep 5, 2026An exhaust manifold slip joint seal kit is now available for EPA 2017-2024 PACCAR MX-13 engines.
- 11035343Jul 25, 2026105 chassis have been removed from the chassis list and unflagged in PRWS due to expiration of applicable warranty coverage. Total chassis population is 732.
- 11035111Jul 10, 2026The Condition, Chassis Affected, Service Action, Warranty, and Procedure sections have been updated to include the latest prognostics bulletin verbiage.
- 11032293Apr 17, 2026The attached procedures document has been updated with more detail and explanations. This is not a stand-alone procedure. Cummins Quickserve troubleshooting will specify the use…
- 11032284Apr 1, 2026EPA17-24 MX Fuel Injector Connector - This bulletin has been revised to include all EPA17-24 and CARB24 PACCAR MX engines.
- 11028314Jan 31, 2026Procedure pictures updated for clarity. When troubleshooting Cummins X15 fault codes 555 or 556, follow this additional testing, inspection, and documentation procedure to help…
- 11010926Nov 22, 2024Info Only Unnecessary starter replacements can result from customer complaints regarding engine starting issues. A new Starter Troubleshooting Guide has been created to provide a…
- 11009757Oct 22, 20247/700 Service Agreement - Letter Only.
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2020 | 1 | 20% |
| 2018 | 1 | 14% |
Other parts of the 2018 Peterbilt 579
4 complaintsBrakes
3 complaintsSteering
2 complaintsOther or unknown
1 complaintsSuspension
1 complaints
← All problems reported for the 2018 Peterbilt 579
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology