1999 Peterbilt 379 Fuel system Problems
- Complaints
- 2about this part
- Share
- 40%of 5 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the fuel system of the 1999 Peterbilt 379, 40% of the 5 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.
“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?”
NHTSA complaint #10016372, filed 2003-04“Fault in fuel line equalizing and if you fill your fuel tanks the fuel ends up returning into one tank and the tank over flows. This causes two problems the first is creating an environmental hazard the second is a safty problem making the roadway slippery worst than driving on ice.”
NHTSA complaint #10037070, filed 2003-09Fuel system: other model years
Other parts of the 1999 Peterbilt 379
← All problems reported for the 1999 Peterbilt 379
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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