2011 Chevrolet Avalanche 1500 Engine cooling Problems
- Complaints
- 1about this part
- Share
- 4%of 28 total for the year
- Median mileage
- 88,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the engine cooling of the 2011 Chevrolet Avalanche 1500, 4% of the 28 complaints for this model year. Where a mileage was given, the median is 88,000 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.
“Reduced engine power , engine dies no power steering or power brakes almost rear ended on I-25. Trouble code says p2135 throttle body has happened 20 times or more in 8 months. Dealer where purchased say they never heard of this problem then said new wiring harness might fix it,knew the price without looking it up? There are thousands of posts on line about problem,but they never heard of it.wiring harness replaced throttle body cleaned and checked peddle checked still happens ,have spent hundreds. No solution . …”
NHTSA complaint #10451757, filed 2012-03, 88,000 milesRelated service bulletins
- 10251890Mar 13, 2024This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank…
- 10250775Feb 22, 2024This 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…
- 10250505Feb 7, 2024This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.
- 10250503Feb 7, 2024This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.
- 10250347Feb 2, 2024This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and…
- 10249579Jan 12, 2024This PI bulletin advises the technician on the proper way to install the pistons in an engine.
- 10247192Dec 8, 2023This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
- 10245395Nov 6, 2023This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing…
- 10244273Oct 6, 2023This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
- 10242843Sep 1, 2023The 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…
Engine cooling: other model years
Other parts of the 2011 Chevrolet Avalanche 1500
11 complaintsOther or unknown
11 complaintsElectrical system
4 complaintsBody and structure
4 complaintsElectronic stability control
3 complaintsEngine
3 complaintsTransmission and drivetrain
3 complaintsVehicle speed control
2 complaintsBrakes
1 complaints
← All problems reported for the 2011 Chevrolet Avalanche 1500
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