1999 Peterbilt 379 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
4 owner complaints analyzed
6 distinct recall campaigns
688,310 mi median reported failure mileage
Scope: 1999 model year. Data snapshot: . 1 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:Engine is the most frequently named component, appearing in 1 of 4 complaints (25.0%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Transmission and shifting | 1 | 25.0% |
| Steering behavior | 1 | 25.0% |
| Fuel system concerns | 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:Engine | 1 |
| Engine And Engine Cooling:Engine:Diesel | 1 |
| Fuel System, Diesel:Storage:Tank Assembly | 1 |
| Fuel System, Gasoline:Delivery:Hoses, Lines/Piping, And Fittings | 1 |
| Power Train:Manual Transmission | 1 |
Engine And Engine Cooling:Engine: 1; Engine And Engine Cooling:Engine:Diesel: 1; Fuel System, Diesel:Storage:Tank Assembly: 1; Fuel System, Gasoline:Delivery:Hoses, Lines/Piping, And Fittings: 1; Power Train:Manual Transmission: 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 | 0 |
| 25,000 to 49,999 | 0 |
| 50,000 to 74,999 | 0 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 1 |
Under 25,000: 0; 25,000 to 49,999: 0; 50,000 to 74,999: 0; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 1
150,000 and above miles has the most reports with usable mileage (1). 3 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 |
|---|---|
| 2003 | 3 |
| 2004 | 1 |
2003: 3; 2004: 1
Pattern summary
Engine And Engine Cooling:Engine leads the component reports. Transmission and shifting appears in 1 complaint narratives. Steering behavior appears in 1 complaint narratives. Fuel system concerns 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 10074269 · 2004-05-26 (May 26, 2004)
THE CRANKSHAFT BROKE WHEN SLOWING FOR A SCALE HOUSE, LEAVING THE TRUCK DISABLED. THE TRUCK WAS TOWED TO A SHOP. THE CLUCH AND TRANSMISSION INPUT SHAFT HAD TO BE REPLACED. *JB
Owner-reported narrative. 688,310 miles reported. Look up ODI 10074269 at NHTSA ↗
Owner report 10016372 · 2003-04-22 (April 22, 2003)
I OWN A 1999 PETERBILT 379 WITH LESS THAN 700,000 MILES. TODAY I HAD TO REPLACE A FUEL TANK STRAP THAT BROKE. BASED ON THE AGE OF THE TRUCK, IT APPEARS TO ME THAT IT IS A LITTLE PREMATURE TO BE REPLACING A STRAP, ESPECIALLY ON SOMETHING AS CRITICAL AS A FUEL TANK. I HAVE ALSO READ THERE IS A PROBLEM WITH THE STEERING LINKAGE, HOWEVER I HAVE NEVER RECEIVED ANY RECALL NOTICE FROM PETERBILT OR ANYONE ELSE. WHAT DO I NEED TO LOOK FOR TO SEE IF IT APPLIES TO MY TRUCK? *JB
Owner-reported narrative. Look up ODI 10016372 at NHTSA ↗