2003 Chevrolet Blazer Fuel system Problems
- Complaints
- 10about this part
- Share
- 13%of 77 total for the year
- Median mileage
- 30,037miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 10 complaints about the fuel system of the 2003 Chevrolet Blazer, 13% of the 77 complaints for this model year. Where a mileage was given, the median is 30,037 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.
“1/10/2018, while driving on I-96, SUV suddenly lost power in the middle lane at 72mph. I coasted vehicle to a stop in that lane, as heavy traffic would not allow me to pull over. My family of four were in that SUV when the fuel delivery system failed. The fuel pump stopped working without warning.”
NHTSA complaint #11062137, filed 2018-01, 206,854 miles“My 2003 chevy Blazer has had a faulty fuel gauge since the vehicle was purchased. It was taken into moran Chevrolet in clinton township mi once for warranty repairs but the problem was never fixed. Service rep informed me that it was caused by a bad vehicle ground. Problem still persists to this day. The only way I can avoid running out of gas is to reset the trip odometer every time I fill-up.”
NHTSA complaint #10398310, filed 2011-04, 8,000 miles“I have a 02 Blazer and I believe the fuel gauge is not working properly. After I have gone only about 40 miles on a full tank of gas the gauge shows ? Full. Can that be correct? In the owner?s manual it states that I am to have an 18-gallon fuel tank. With an average of 20 mpg on the highway it should go to ? Tank at about 90 miles.”
NHTSA complaint #10068785, filed 2004-01, 30,037 miles“Since purchase of vehicle in 10/2006, we had hesitation and stalling problems. With a 2003 chevy Blazer. We had several full tune-ups, catalytic converter replacement (upon the advice of a dealership), fuel relay replacement, fuel filter replacement on two occasions, and the removal of two (2) factory rags that had been left in the fuel tank during the manufacturing of the vehicle. Finally the replacement of the fuel pump in july 2008 -- total cost over $3,000. …”
NHTSA complaint #10247378, filed 2008-10, 145,000 miles“Consumer had experienced loud thumping from the engine compartment. There were times when transmission got stuck in one gear for an extended amount of time. Vehicle was taken to the dealer four times for transmission problems. Also, fuel gauge was not functioning properly. When gas was in the tank it could register full one minute and half full the next minute without moving the vehicle. Manufacturer and the dealer had been notified.”
NHTSA complaint #10039773, filed 2003-09, 16,547 milesRelated service bulletins
- 11004761Jun 28, 2024This service 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 or…
- 10208027Jan 14, 2022This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester…
- 10199281May 25, 2021This 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…
- 10190437Mar 30, 2021This Preliminary Information communication provides information to the technician about engine block of possible cylinder bore damage, scoring or out of round as the possible…
- 10176607May 8, 2020This 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…
- 10176310May 8, 2020This Preliminary information communicates the use of Winter grade fuel during the warm months of 2020 and the potential rivability issues that it can cause. The ongoing…
- 10171878Jan 2, 2020This informational 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…
- 10157018Sep 20, 2017This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester…
- 10137635May 10, 2017This informational bulletin advises of a new fuel injection kit used for decarbonizing the intake valves, and explains how toptier fuels should be used to reduce carbon build up.
- 10114831Nov 15, 2016This Preliminary Information communication provides information to the technician about engine block that have a possible cylinder bore damage, scoring or out of round as the…
Fuel system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 1 | 3% |
| 2024 | 4 | 8% |
| 2023 | 3 | 7% |
| 2022 | 7 | 13% |
| 2021 | 18 | 13% |
| 2020 | 5 | 2% |
| 2019 | 2 | 1% |
| 2007 | 5 | 56% |
| 2006 | 11 | 58% |
| 2005 | 7 | 47% |
| 2004 | 1 | 2% |
| 2003 | 10 | 13% |
| 2002 | 22 | 9% |
| 2001 | 33 | 10% |
| 2000 | 84 | 14% |
| 1999 | 30 | 7% |
| 1998 | 29 | 4% |
| 1997 | 84 | 11% |
| 1996 | 36 | 3% |
| 1995 | 112 | 9% |
| 1994 | 45 | 7% |
| 1993 | 22 | 4% |
| 1992 | 11 | 4% |
| 1991 | 7 | 3% |
| 1989 | 4 | 11% |
| 1988 | 1 | 3% |
| 1987 | 3 | 10% |
| 1984 | 2 | 22% |
Other parts of the 2003 Chevrolet Blazer
14 complaintsBody and structure
12 complaintsTransmission and drivetrain
12 complaintsElectrical system
9 complaintsBrakes
8 complaintsEngine cooling
6 complaintsExterior lighting
4 complaintsSuspension
4 complaintsVisibility (wipers, defrost, mirrors)
4 complaintsSteering
3 complaintsEquipment
2 complaintsInterior lighting
2 complaints
← All problems reported for the 2003 Chevrolet Blazer
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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