2014 GMC Sierra Engine Problems
- Complaints
- 8about this part
- Share
- 8%of 101 total for the year
- Median mileage
- 2,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 8 complaints about the engine of the 2014 GMC Sierra, 8% of the 101 complaints for this model year. Where a mileage was given, the median is 2,000 miles. 1 of these say a crash was involved and 1 a fire, according to the filers.
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 had my truck's ECM reprogrammed last friday (1/17) due to recall #14v007, and earlier this evening (1/24) the check engine light came in and the dic showed an engine power is reduced message. The engine ran very sluggish and I parked it as GM recommended to do in their recall letter. This is the second time this has happened now. I thought that the new software was supposed to correct that issue?”
NHTSA complaint #10561405, filed 2014-01, 730 miles“The vehicle had been parked for over three hours at which time it was engulfed in flames. The entire engine compartment consumed by fire. We had taken the vehicle 2 weeks earlier to a dealer to have the recall component replaced but it appears that the problem was not corrected and now we have a vehicle which was only 4 months old as a piece of worthless pile of metal. Gm has been slow to react to this issue and has requested that we first have our insurance company look at the vehicle vs. Seem send them one to look at the this.”
NHTSA complaint #10574059, filed 2014-03, 17,500 miles“#5 cylinder rocker arm broke took to a dealership in michigan to get repaired. Problems with engine running, before all this happened I was getting 20/22 mpg on the highway which is what I travel mostly, now since this happen I only getting 16/18 mpg on the highway. My dealership in milwaukee worked with an engineer from GM and they claim everything up to spec and won't do anymore on the vehicle but yet something has happened that I have lost about 4/6 mpg highway or $20 per tank which with my traveling is a lot of money $400 month. …”
NHTSA complaint #10663265, filed 2014-12, 3,250 miles“My son and I were driving my Gmc Sierra 2014 to his friends house before we crashed. My son was driving and has his learner's permit, however, had been driving for 4 months. At a fork in the road I told my son quickly to make a right rather than left and we crashed into an improperly grated wall of dirt causing the truck to go from 40 MPH to 0 with my son having his seatbelt on, but I did not. Neither airbags deployed and both of us sustained serious injuries. My son broke his nose and I am suffering from a broken nose, concussion and a burst vertebrae. …”
NHTSA complaint #10621127, filed 2014-08, 4,000 miles“Vehicle was purchased new from a dealership. The vehicle is modified and sold commercially under the rmt (rocky mountain truck works) package. The package includes modified suspension and lighting. When accelerating, the transmission fails to shift into a passing gear causing the RPM(s) to exceed 6000 at which point the rev limiter shuts down power to the vehicle until the RPM(s) are back in a safe operating limit. The first time this happened, I was attempting to pass a vehicle on a secondary two lane highway. …”
NHTSA complaint #10598620, filed 2014-06, 1,000 milesRelated service bulletins
- 10095901Feb 9, 2016This preliminary information communication provides information to the technician about vehicles that may have a cold engine tick noise for 50 seconds at start up. Technician…
- 10059095Aug 1, 2015General motors: in some vehicles and trucks, when transferring intake manifold to replace an engine long service block, due to internal damage, extreme caution must be taken for…
- 10059068Aug 1, 2015Chevrolet/gmc: on trucks/suvs after having an oil and filter change, the pressure for oil is low and ses light had diagnostic trouble code (dtc) p0521 appear. Model 2014-15…
- 10059065Aug 1, 2015Gmc/chevrolet/cadillac: information provided on some vehicles and suv, for replacement of crankshaft, for engine repair and oil tank and lines would be replaced on dry sump…
- 10059076Jun 1, 2015Chevrolet/gmc: when ambient temperature reaches 103f or greater and accelerating from a stop, there is a lack of power from engine. Model 2010-14 avalanche, silverado, suburban…
- 10056836Dec 1, 2014Chevrolet: vehicle experience rough idle and vibration at idle in gear. Which may also be described as low idle.
- 10056456Sep 1, 2014Chevrolet/gmc: after ignition key has turned engine off, it remains running a possible caused maybe du to installation of a fuse in f26ua and/or f31ua location of ubec. Model…
- 10056354Sep 1, 2014Gmc/chevrolet: engines, with egr system, has leakage from egr cooler engine coolant into the combustion chamber. Model 2002-15 silverado, sierra, 2004-09 kodiak c4500-c5500…
- 10055403Aug 1, 2014Gm: engine will crank but will not start. Dtc p00c6 may be set. Low fuel rail pressure. Also includes chevrolet corvette, gmc yukon xl and sierra. Model year 2015. *js updated…
- 10055840Apr 1, 2014Gmc/chevrolet: some vehicles/trucks may experience a no cranking or starting, caused by possible excessive leakage from cylinder past exhaust or intake valve, low static…
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2017 | 4 | 7% |
| 2015 | 2 | 4% |
| 2014 | 8 | 8% |
| 2013 | 3 | 8% |
| 2012 | 5 | 17% |
| 2011 | 7 | 16% |
| 2010 | 2 | 6% |
| 2009 | 3 | 8% |
| 2008 | 1 | 1% |
| 2007 | 2 | 3% |
| 2005 | 8 | 7% |
| 2004 | 5 | 3% |
| 2003 | 3 | 1% |
| 2002 | 3 | 1% |
| 2001 | 1 | 0% |
| 2000 | 1 | 0% |
| 1997 | 1 | 0% |
Other parts of the 2014 GMC Sierra
63 complaintsTransmission and drivetrain
10 complaintsElectrical system
9 complaintsBody and structure
8 complaintsSteering
7 complaintsAir bags
5 complaintsSuspension
5 complaintsVisibility (wipers, defrost, mirrors)
5 complaintsOther or unknown
2 complaintsSeats
2 complaintsElectronic stability control
1 complaintsEquipment
1 complaints
← All problems reported for the 2014 GMC Sierra
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