2003 Chevrolet Impala Fuel system Problems
- Complaints
- 26about this part
- Share
- 4%of 695 total for the year
- Median mileage
- 77,000miles
- Trend
- FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA recorded 26 complaints about the fuel system of the 2003 Chevrolet Impala, 4% of the 695 complaints for this model year. Where a mileage was given, the median is 77,000 miles. 3 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I just recently bought this vehicle 03/11/20 and it ran great till yesterday when the intake manifold exploded and caught fire to the engine from the fuel lines melted this happened when I was getting a jump. It says there are no recalls pending it is the 3.8l and it looked original all the parts did can you please help me out”
NHTSA complaint #11349773, filed 2020-08, 200,200 miles“Yes my engine oil is leaking and it making my car hot and I think my oil pan is full of oil every time I put oil in it it run straight out and I can't drive my car more than 20 minutes straight or it will just cut complete off and my brakes is going out they want stop on time”
NHTSA complaint #10873485, filed 2016-06, 30 miles“I own a 2003 chevy Impala. About once a week for the last month, the vehicle fails to start. The security light flashes on the information panel indicating that the passlock system has locked out the fuel system. Spoke to a dealership and was told that the repair would be time consuming and costly. I have only owned the vehicle for about 18 months.”
NHTSA complaint #10251305, filed 2008-12, 100,900 miles“There are 3 recalls I have found that possibly are effecting my 2003 Impala but because my specific VIN # doesn't fall under any of these GM is refusing to fix these problems. 1)the body control module needs to be reset. Apparently when it goes out the cruise control disengages.....and my cruise control light is on but won't engage. Plus my mechanic says the body control module also is what is could be causing my heater fan to not work nor my information display to work. …”
NHTSA complaint #10682436, filed 2015-02, 150,000 miles“Found a gasoline leak at the quick connect fitting where the fuel line meets the fuel rail on top rear of engine. I believe its the fuel return line. The quick connect fitting is leaking fuel down onto engine and could drip onto hot exhaust manifold causing a fire. Car was stationary when I noticed the leak. I smelled gas first then traced the smell to the leaking quick connect fitting. This may be related to the recent GM recall of valve covers leaking oil causing the fires.”
NHTSA complaint #10789172, filed 2015-11, 144,000 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 |
|---|---|---|
| 2020 | 2 | 13% |
| 2019 | 2 | 7% |
| 2018 | 3 | 5% |
| 2017 | 4 | 3% |
| 2016 | 5 | 5% |
| 2015 | 10 | 3% |
| 2014 | 13 | 2% |
| 2013 | 10 | 4% |
| 2012 | 18 | 7% |
| 2011 | 17 | 3% |
| 2010 | 17 | 4% |
| 2009 | 19 | 2% |
| 2008 | 19 | 2% |
| 2007 | 23 | 4% |
| 2006 | 20 | 4% |
| 2005 | 42 | 7% |
| 2004 | 37 | 3% |
| 2003 | 26 | 4% |
| 2002 | 34 | 4% |
| 2001 | 39 | 5% |
| 2000 | 76 | 9% |
| 1996 | 9 | 10% |
| 1995 | 5 | 11% |
| 1994 | 4 | 27% |
Other parts of the 2003 Chevrolet Impala
264 complaintsExterior lighting
103 complaintsEngine
88 complaintsEngine cooling
80 complaintsBrakes
76 complaintsOther or unknown
41 complaintsAir bags
39 complaintsSteering
30 complaintsTransmission and drivetrain
30 complaintsVehicle speed control
23 complaintsVisibility (wipers, defrost, mirrors)
21 complaintsBody and structure
15 complaints
← All problems reported for the 2003 Chevrolet Impala
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