2001 Peterbilt 379 Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2001 Peterbilt 379, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Suspension337.5%
- Body & structure225.0%
- Heating & air conditioning112.5%
- Engine112.5%
- Other / unspecified112.5%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Suspension
Reports naming suspension components — springs, struts, shocks, control arms and related hardware.
From owner reports, verbatim
VEHICLE WOULD WANDER WHEN DRIVING 60-65 MPH, VEHICLE BEEN IN DEALER SHOP ON TWO OCCASIONS, AND ROBLEM STILL OCCURRING. FEEL FREE TO PROVIDE ANY FURTHER INFORMATION.*AK
FRONT WHEEL BEARINGS HAVE REQUIRED TIGHTENING NUMEROUS TIMES. THE LEFT AND RIGHT SIDE BEARINGS HAVE BEEN REPLACED DUE TO SPINDLES. *JG
Too few reports in this category for a page of its own — they appear in the full complaint list.
Body & structure
Reports naming the vehicle structure, frame, body panels, doors, hood and trim.
From owner reports, verbatim
THE VEHICLE EXHIBITS STRONG VIBRATION, THE DEALER HAS BALANCED THE DRIVESHAFT, DELAY SPRING, REPLACED THE FRONT SHOCK ABSORBERS, FRONT BEARINGS, INSTALLED ALUMINUM FRONT HUBS, ALIGNED THE FRONT WHEELS, REPLACED ENGINE INJECTOR COILS, REPLACED ONE DEFECTIVE WHEEL, REPLACED MUFFLER SEAL, MIRROR DOOR MOUNTING AND, WITH ALL THESE REPAIRS THE VIBRATION WAS NOT ELIMINATED. NLM
THE DOOR IS OUT OF ALIGNMET ALLOWING COLD AIR TO ENTER THE CAB WHILE DRIVING AND MAKING IT DIFFICULT TO OPEN AND CLOSE THE DOOR, THE DEALER HAS HAS ATTEMPTED TO FIX THE PROBLEM ON SEVERAL OCCASIONS BUT WITH NO SUCCESS. NLM
Too few reports in this category for a page of its own — they appear in the full complaint list.
Heating & air conditioning
Reports naming the heating, ventilation and air-conditioning system.
From owner reports, verbatim
VEHICLE HAS A TOXIC CHEMICALS COMING OUT OF AIR DUCTS. CONSUMER BELIEVED IT WAS COMING OUT OF AIR CONDITIONER EVAPORATOR. IT BURNED CONSUMER'S EYES. CONSUMER WILL CONTACT THE MANUFACTURER. *AK
Too few reports in this category for a page of its own — they appear in the full complaint list.
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
VEHICLE HAS A TOXIC CHEMICALS COMING OUT OF AIR DUCTS. CONSUMER BELIEVED IT WAS COMING OUT OF AIR CONDITIONER EVAPORATOR. IT BURNED CONSUMER'S EYES. CONSUMER WILL CONTACT THE MANUFACTURER. *AK
Too few reports in this category for a page of its own — they appear in the full complaint list.
Other / unspecified
Reports whose component NHTSA recorded as unknown, or that do not map to one of the categories above.
From owner reports, verbatim
THE DOOR IS OUT OF ALIGNMET ALLOWING COLD AIR TO ENTER THE CAB WHILE DRIVING AND MAKING IT DIFFICULT TO OPEN AND CLOSE THE DOOR, THE DEALER HAS HAS ATTEMPTED TO FIX THE PROBLEM ON SEVERAL OCCASIONS BUT WITH NO SUCCESS. NLM
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .