1997 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 1997 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
- Fuel system228.6%
- Body & structure114.3%
- Brakes114.3%
- Powertrain (other)114.3%
- Steering114.3%
- Tires & wheels114.3%
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
Fuel system
Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.
From owner reports, verbatim
BRAKES WOULD NOT HOLD WHILE IN PARK, BODY BUSHINGS AND SUPPORT IS WORN AND RUSTED. FUEL HAD LACK OF POWER AND EXCESSIVE FUEL SMELL AND WOULD NOT START WITH OUT STARTING FLUID AND WAS THE COLOR OF OFF ROAD DIESEL. *TR
LEFT REAR FUEL TANK STRAP BROKE CAUSING TANK TO HANG FROM THE TRUCK, STRAP HAD HAIRLINE CRACK ON INNER SIDE BELOW WELD, THIS MAY HAVE CAUSED EXTENSIVE FUEL LEAKAGE, DEALER CLAIMS THIS TO BE A COMMON PROBLEM. *MJS
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
BRAKES WOULD NOT HOLD WHILE IN PARK, BODY BUSHINGS AND SUPPORT IS WORN AND RUSTED. FUEL HAD LACK OF POWER AND EXCESSIVE FUEL SMELL AND WOULD NOT START WITH OUT STARTING FLUID AND WAS THE COLOR OF OFF ROAD DIESEL. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Brakes
Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.
From owner reports, verbatim
BRAKES WOULD NOT HOLD WHILE IN PARK, BODY BUSHINGS AND SUPPORT IS WORN AND RUSTED. FUEL HAD LACK OF POWER AND EXCESSIVE FUEL SMELL AND WOULD NOT START WITH OUT STARTING FLUID AND WAS THE COLOR OF OFF ROAD DIESEL. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Powertrain (other)
Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.
From owner reports, verbatim
WHEEL SEALS & BEARINGS WENT OUT. HAD BEARINGS & SEALS REPLACED & THEY WENT OUT AGAIN. ALSO WHEEL HUB AND SPINDLE MIGHT BE DEFECTIVE. *AK
Too few reports in this category for a page of its own — they appear in the full complaint list.
Steering
Reports naming the steering system — racks, columns, power-steering assist and steering linkage.
From owner reports, verbatim
WHEEL SEALS & BEARINGS WENT OUT. HAD BEARINGS & SEALS REPLACED & THEY WENT OUT AGAIN. ALSO WHEEL HUB AND SPINDLE MIGHT BE DEFECTIVE. *AK
Too few reports in this category for a page of its own — they appear in the full complaint list.
Tires & wheels
Reports naming tires, wheels, hubs, or the tire-pressure monitoring system.
From owner reports, verbatim
WHEEL SEALS & BEARINGS WENT OUT. HAD BEARINGS & SEALS REPLACED & THEY WENT OUT AGAIN. ALSO WHEEL HUB AND SPINDLE MIGHT BE DEFECTIVE. *AK
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 .