2008 Peterbilt 386 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
4 owner complaints analyzed
14 distinct recall campaigns
8,500 mi median reported failure mileage
Scope: 2008 model year. Data snapshot: . 4 complaints include usable failure mileage.
This selection has limited data. It remains available for lookup but is excluded from search indexing.
Most common problems
Engine And Engine Cooling:Exhaust System:Emission Control:Catalytic Convertor is the most frequently named component, appearing in 2 of 4 complaints (50.0%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Electrical and battery issues | 1 | 25.0% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Engine And Engine Cooling:Exhaust System:Emission Control:Catalytic Convertor | 2 |
| Electrical System | 1 |
| Engine And Engine Cooling | 1 |
| Engine And Engine Cooling:Exhaust System | 1 |
Engine And Engine Cooling:Exhaust System:Emission Control:Catalytic Convertor: 2; Electrical System: 1; Engine And Engine Cooling: 1; Engine And Engine Cooling:Exhaust System: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 3 |
| 25,000 to 49,999 | 0 |
| 50,000 to 74,999 | 0 |
| 75,000 to 99,999 | 1 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 3; 25,000 to 49,999: 0; 50,000 to 74,999: 0; 75,000 to 99,999: 1; 100,000 to 149,999: 0; 150,000 and above: 0
Under 25,000 miles has the most reports with usable mileage (3). 0 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2008 | 3 |
| 2009 | 1 |
2008: 3; 2009: 1
Pattern summary
Engine And Engine Cooling:Exhaust System:Emission Control:Catalytic Convertor leads the component reports. Electrical and battery issues appears in 1 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 10228784 · 2008-05-23 (May 23, 2008)
2008 PETERBILT 386 ROAD TRACTOR WITH A CUMMINS ISX 550 HP ENGINE. PURCHASED 9-10-07. ELECTRICAL ISSUES. THE DOOR LOCKS WERE BLOWING FUSES, THE GPS AND RADIO WOULD GO OFF AND ON, THE POWER WINDOWS AND WINDSHIELD WIPERS STOPPED WORKING, THE DASH LIGHTS AND BUZZERS WOULD FLASH AND ALARM WHEN ON ROUGH ROADS, THE LOW COOLANT LIGHT STAYING ON. SOME SENSORS;FUSES REPLACED. IN JANUARY HAVING OIL PRESSURE ISSUES. PRESSURE WOULD DROP TO 0 AND TRUCK WOULD SHUT OFF. TOLD THIS A CLOGGED OIL FILTER. CHANGED THE FILTER. CONTINUED TO HAVE THE PROBLEM. IN FEB…
Owner-reported narrative. 80,000 miles reported. Look up ODI 10228784 at NHTSA ↗