2006 Chevrolet Silverado 2500 Engine cooling Problems
- Complaints
- 12about this part
- Share
- 7%of 178 total for the year
- Median mileage
- 38,036miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 12 complaints about the engine cooling of the 2006 Chevrolet Silverado 2500, 7% of the 178 complaints for this model year. Where a mileage was given, the median is 38,036 miles. 2 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 purchased 2006 silverado new and after the 1st year noticed rusting. Just before it came off warranty (2009) the coolant line from the radiator and the brake rotors (front and rear) had rusted through. Have since replaced the rotors again and now my brake line burst open as I was driving home. …”
NHTSA complaint #10463449, filed 2012-06, 26,000 miles“The line running from the transmission to the radiator is extremely prone to leaking due to a weak/improper crimp in the hose. As time goes on transmission fluid is depleted and could lead to transmission failure. The leak is widespread across most allison transmissions due to a faulty hose crimp and leaks through the crimp in the hose.”
NHTSA complaint #10564253, filed 2014-02, 32,000 miles“2006 Chevrolet silverado 6.6 liter turbo diesel. Transmission cooler lines are leaking. Both the lower trans. Cooler line and trans. Cooler line from the radiator to the aux. Truck has 59 000 miles on it. Issue has been repaired by dealer that informed that this should not happen and that lines quality are to blame definitely not wear and tear( ref model and mileage).why is there no factory recall on this failure?”
NHTSA complaint #10377160, filed 2011-01, 59,000 miles“Engine idler pulley seized causing serpentine belt to break which resulted in loss of power steering and loss of power brakes..2 local GM dealer parts department's stated this is common on the duramax diesel engine.”
NHTSA complaint #10713257, filed 2015-04, 52,601 miles“2006 Chevrolet 2500 pick-up w/8.1 motor. First there was faulty hoses causing low oil warning to come on. Now engine is low on oil with 1800 miles since last oil change. Had to put in 1 1/4 quart of oil. After engine break in. I switched to mobile 1 5w30 synethic. A recommended oil to use by Chevrolet. Dealers service dept. Says its suppose to use a quart to 2000miles. I don't believe that with the modern technology of engines. Maybe years ago but not now. If that's the case then Chevrolet should have said this engine uses oil. I guarantee you not many would have been sold.”
NHTSA complaint #10250926, filed 2008-12Related service bulletins
- 10251887Mar 14, 2024This bulletin advises the technician of possible location of an internal coolant leak from a specific cylinder head and location.
- 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…
- 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.
- 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…
- 10242262Aug 24, 2023This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and…
- 10240344Jul 31, 2023This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2023 | 1 | 2% |
| 2022 | 3 | 3% |
| 2020 | 4 | 4% |
| 2019 | 3 | 4% |
| 2018 | 1 | 2% |
| 2015 | 1 | 1% |
| 2011 | 1 | 1% |
| 2009 | 1 | 2% |
| 2008 | 5 | 3% |
| 2007 | 13 | 6% |
| 2006 | 12 | 7% |
| 2005 | 16 | 6% |
| 2004 | 23 | 6% |
| 2003 | 16 | 4% |
| 2002 | 43 | 12% |
| 2001 | 78 | 20% |
| 2000 | 11 | 8% |
| 1999 | 3 | 4% |
| 1998 | 2 | 3% |
| 1997 | 7 | 11% |
Other parts of the 2006 Chevrolet Silverado 2500
71 complaintsTransmission and drivetrain
32 complaintsSteering
18 complaintsElectrical system
14 complaintsTires
12 complaintsAir bags
8 complaintsBody and structure
8 complaintsVisibility (wipers, defrost, mirrors)
7 complaintsFuel system
6 complaintsEngine
5 complaintsOther or unknown
5 complaintsSuspension
5 complaints
← All problems reported for the 2006 Chevrolet Silverado 2500
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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