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EnginePart report

2014 GMC Sierra 3500 Engine Problems

Complaints
1about this part
Share
14%of 7 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 of the 2014 GMC Sierra 3500, 14% of the 7 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.

“CP4 High Pressure Fuel Pump failed/disintegrated causing metal shavings to be pumped through out the fuel lines, injectors and connected systems requiring a replacement of the pump, injector and fuel lines totaling over $11,000 in repairs. Trucks mileage was 94112 at the time.”

NHTSA complaint #11440947, filed 2021-11

Related service bulletins

Engine: other model years

YearComplaintsShare of year
2025212%
2024816%
2023311%
202239%
2021315%
2020612%
2019215%
201817%
2017215%
2016526%
2015413%
2014114%
2013214%
2012333%
201115%
200814%
2007213%
200514%
200215%
200126%

Other parts of the 2014 GMC Sierra 3500

Fuel system
2 complaints
Vehicle speed control
2 complaints
Brakes
1 complaints
Electrical system
1 complaints
Exterior lighting
1 complaints
Steering
1 complaints
Transmission and drivetrain
1 complaints

← All problems reported for the 2014 GMC Sierra 3500

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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