2001 Chevrolet Blazer Engine cooling Problems
- Complaints
- 23about this part
- Share
- 7%of 326 total for the year
- Median mileage
- 47,000miles
- Trend
- StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.
NHTSA recorded 23 complaints about the engine cooling of the 2001 Chevrolet Blazer, 7% of the 326 complaints for this model year. Where a mileage was given, the median is 47,000 miles.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“There is an error code in teh computer p0410 the secondary injector needs to be replaced again and again, it was covered under warranty the first time. Then wemoved to massachusetts and the light came on again which I then got it fixed and paid for it on my own because it wasn't under warranty, and the light came on again with teh same code p0410 the secondary air injector. I haven't been abel to get the vehicle inspected due to teh error code becuase it caused an emmsisions failure. …”
NHTSA complaint #10186108, filed 2007-03, 92,000 miles“The electric smog pump on my 2001 chevy Blazer had failed when pump filled with water and shorted out. This is caused due to the short intake hose to the pump. This is an apparent known issue with GM, but they will not replace the pump. This also causes the vehicle to fail emissions testing. Gm wanted $400 for the pump + labor to repair the issue. Once the part became available for 3rd party vendors, we were able to replace the pump ourselves, added a longer intake hose, and the vehicle now runs correctly. …”
NHTSA complaint #10250775, filed 2008-12, 130,000 miles“I have reviewed other owners complaints regarding their front suspension, fuel pump with random shut offs. My vehicle is experiencing the same and similar problems. As of today my vehicle is in the shop;I was doing 35-40 MPH when vehicle just un expectedly shut off. I was stranded on a major road which cause a significant traffic delay. I have an oil leak from the hose leading to my oil filter and the vehicle pull to the right sharply if I release the steering wheel. The vehicle makes a popping sound when turning. …”
NHTSA complaint #10018522, filed 2003-05, 1,000 miles“The AC compressor has been replaced 3 times - the last time was on 9/2003. The exhaust pipe seal has been replaced, the muffler has been replaced, cluster dash went out and replaced, front suspension replaced, brake lights went out and replaced. The back window was not aligned properly and had to be fixed. The front passenger door had to be realigned and the door sill replaced.”
NHTSA complaint #10069474, filed 2004-01, 47,642 miles“Dt: consumer owned a 2001 Chevrolet Blazer which he purchased in january 2002. The vehicle stalled six times in 2002, two times in 2004, and two times on july 21, 2005. The vehicle was never taken to the dealership for this problem. Also, the consumer has not contacted the manufacturer. This happened at any speed. The vehicle did not always start right up. The problem was more persistent in the summer.”
NHTSA complaint #10129738, filed 2005-08, 32,000 milesRelated 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…
- 10249579Jan 12, 2024This PI bulletin advises the technician on the proper way to install the pistons in an engine.
- 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…
- 10236164Apr 24, 2023This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308…
- 10234110Mar 17, 2023This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.
- 10228888Dec 14, 2022This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or…
- 10227056Nov 9, 2022This 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…
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2024 | 2 | 4% |
| 2023 | 2 | 5% |
| 2022 | 1 | 2% |
| 2021 | 3 | 2% |
| 2020 | 3 | 1% |
| 2019 | 1 | 1% |
| 2008 | 1 | 20% |
| 2005 | 1 | 7% |
| 2004 | 4 | 8% |
| 2003 | 6 | 8% |
| 2002 | 20 | 8% |
| 2001 | 23 | 7% |
| 2000 | 63 | 11% |
| 1999 | 62 | 14% |
| 1998 | 64 | 9% |
| 1997 | 93 | 12% |
| 1996 | 149 | 13% |
| 1995 | 213 | 17% |
| 1994 | 42 | 7% |
| 1993 | 51 | 10% |
| 1992 | 9 | 3% |
| 1991 | 12 | 5% |
| 1990 | 5 | 16% |
| 1989 | 4 | 11% |
| 1988 | 7 | 18% |
| 1987 | 2 | 7% |
| 1986 | 5 | 26% |
| 1985 | 5 | 17% |
| 1984 | 1 | 11% |
Other parts of the 2001 Chevrolet Blazer
68 complaintsBrakes
51 complaintsElectrical system
40 complaintsSuspension
40 complaintsFuel system
33 complaintsTransmission and drivetrain
31 complaintsAir bags
22 complaintsBody and structure
15 complaintsVisibility (wipers, defrost, mirrors)
15 complaintsEquipment
12 complaintsSteering
12 complaintsSeat belts
11 complaints
← All problems reported for the 2001 Chevrolet Blazer
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