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Engine coolingPart report

2001 Peterbilt 379 Engine cooling Problems

Complaints
1about this part
Share
17%of 6 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the engine cooling of the 2001 Peterbilt 379, 17% of the 6 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.

“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.”

NHTSA complaint #889927, filed 2001-06

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
2007233%
2005229%
2001117%
1999240%

Other parts of the 2001 Peterbilt 379

Suspension
3 complaints
Equipment
2 complaints
Body and structure
2 complaints

← All problems reported for the 2001 Peterbilt 379

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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