2000 Chevrolet Blazer Engine cooling Problems
- Complaints
- 63about this part
- Share
- 11%of 589 total for the year
- Median mileage
- 69,500miles
- Trend
- StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.
NHTSA recorded 63 complaints about the engine cooling of the 2000 Chevrolet Blazer, 11% of the 589 complaints for this model year. Where a mileage was given, the median is 69,500 miles. 1 of these say a crash was involved, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The heater core has gone out four times since I have owned the vehicle when this happens I can not see out my windshield and I am breathing in poisonous fumes from the anti freeze that is now leaking into the drivers cab.”
NHTSA complaint #10346509, filed 2010-07, 108,000 miles“2000 Blazer transmission failed, cost $3000 to repair. Left ball joint failed and replaced all $500, pitman arm, idler arm, tie rods right and left needed replacement. Left front wheel bearing hub failed and was replaced, both $800. Overheating due to dexcool leak at intake needed replacement. I have a $20,000 piece of junk sitting in my driveway.this was ongoing from earlier year models but no recalls for this year ,why no body died ? Fuel gauge bounced.”
NHTSA complaint #10196403, filed 2007-07, 60,000 miles“Always smell fuel while driving replaced all fuel systems then all sensors needed replacing so I did that and now there telling me I have a electric problems since buying this vehicle new I put over 6000.00 dollars into and I still have all the same problems mostly with the fuel system I still smell alot of fuel when driving and back firing and shutting off in the middle of driving I have all my receipts from work done on the whole fuel system and I've looked up this kind of Blazer and everyone who owned one has the same problems.”
NHTSA complaint #10428095, filed 2011-09, 113,000 miles“I have a 2000 Blazer lt with 128,000 miles that has had heating/cooling system problems for several years. Had dex-cool in system which I monitored regularly to make sure has topped up. Gm states dex-cool is maint free to 155,000 miles. When vehicle reached 100,000 miles, I began to loose heat. I noticed a crystal-like residue floating in coolant. Drained, back flushed heater core and flushed system 3 times then added prestone (green) coolant. After about 10,000 miles began to loose heat again, repeated flush and fill. …”
NHTSA complaint #10283990, filed 2009-09, 100,000 miles“Smoke and radiator fumes pouring from the defrost and air conditioner vents.so much condensation on windshield makes visibility difficult. Breathing radiator fumes and fluid posing serious health risk to my children. Son had been spitting up blood and complaining of having difficulty with breathing before we could determine it was from the vehicle also causes throat irritation. There are no indicator lights on and the vehicle was just purchased on 1/3/2005 with 100603 miles.”
NHTSA complaint #10114071, filed 2005-03, 100,700 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…
- 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…
- 10222796Sep 14, 2022This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.
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 2000 Chevrolet Blazer
100 complaintsFuel system
84 complaintsTransmission and drivetrain
84 complaintsExterior lighting
79 complaintsBrakes
63 complaintsElectrical system
49 complaintsSeats
49 complaintsBody and structure
44 complaintsAir bags
34 complaintsVisibility (wipers, defrost, mirrors)
29 complaintsVehicle speed control
26 complaintsSteering
23 complaints
← All problems reported for the 2000 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