2020 Chevrolet Express Engine Problems
- Complaints
- 3about this part
- Share
- 18%of 17 total for the year
- Median mileage
- 26,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the engine of the 2020 Chevrolet Express, 18% of the 17 complaints for this model year. Where a mileage was given, the median is 26,000 miles.
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.
“The contact stated that the 2020 Chevrolet Express was used as a school bus. The contact stated while driving at various speeds, the vehicle suddenly stalled and would not restart. During the failure the check engine warning light was illuminated. The vehicle was towed to the local dealer but the failure could not be duplicated and no repair was performed. The manufacturer was notified of the failure. The failure mileage was 26,000.”
NHTSA complaint #11460154, filed 2022-04, 26,000 miles“The vehicle is experiencing an under-chassis manufacturing wiring harness restriction (Connector X185) that was installed too tightly from the factory, dropping the 5-volt reference power circuit down to 0 volts under load. This intermittent electrical failure completely starves the fuel pump, causing the fuel loop pressure to drop to a dangerous 43.5 PSI while driving (GM factory specification is 55–100 PSI). This electrical breakdown simultaneously chokes the fuel tank vapor loops, causing the fuel tank pressure to spike to an extreme -1100 vacuum pressure parameter. …”
NHTSA complaint #11766626, filed 2026-09Related service bulletins
- 11026017Jun 5, 2025This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
- 11024485May 15, 2025The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the…
- 11020254May 7, 2025This service bulletin provides information to dealership personnel for new vehicles with less than 1,000 miles that may not pass California smog inspection or smog inspection in…
- 11019503Apr 18, 2025This warranty administration bulletin provides policy information on vehicles outside of a California Emissions State who move to and register their vehicle in a California…
- 11017263Mar 25, 2025This bulletin advises the technician to flush the cooling system multiple times if oil has been found in the cooling system and replace the parts that may be contaminated due to…
- 11016942Mar 4, 2025This bulletin advises the technician to flush the cooling system multiple times if oil has been found in the cooling system and replace the parts that may be contaminated due to…
- 11014230Jan 31, 2025This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
- 11014233Jan 30, 2025This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large…
- 11013269Jan 16, 2025This informational bulletin provides a guide on how to diagnose and test for vibrations utilizing the PicoScope.
- 11013069Jan 9, 2025This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2020 | 3 | 18% |
| 2017 | 1 | 5% |
| 2016 | 2 | 13% |
| 2015 | 1 | 13% |
| 2014 | 1 | 7% |
| 2013 | 7 | 32% |
| 2012 | 1 | 8% |
| 2011 | 2 | 17% |
| 2010 | 4 | 27% |
| 2008 | 2 | 14% |
| 2007 | 1 | 6% |
| 2006 | 1 | 8% |
| 2004 | 1 | 5% |
| 2003 | 4 | 7% |
Other parts of the 2020 Chevrolet Express
9 complaintsElectrical system
3 complaintsBody and structure
3 complaintsBrakes
2 complaintsOther or unknown
2 complaintsFuel system
1 complaints
← All problems reported for the 2020 Chevrolet Express
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