2003 Buick Lesabre Fuel system Problems
- Complaints
- 6about this part
- Share
- 4%of 164 total for the year
- Median mileage
- 25,675miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 6 complaints about the fuel system of the 2003 Buick Lesabre, 4% of the 164 complaints for this model year. Where a mileage was given, the median is 25,675 miles. 1 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 was driving and proceeded to slow down as I did I heard a loud noise I continued driving about 3 miles when I smelled something burning. I stopped for a red light and noticed smoke coming from underneath the hood on the driver side. I pulled into a parking lot where the car proceeded to ignite on fire and burned before the fire department got there. I had no previous problems with car before this incident.”
NHTSA complaint #10238927, filed 2008-08, 73 miles“For the past several months, I have had a problem with a faulty with the gas cap. The alert I receive on the car states that the gas cap is loose, then the engine light goes on. I have had this issue thoroughly checked out by my mechanic and he is stumped as to how to fix this. We have replaced the gas cap several times, he has performed numerous checks to see if there is a leak in the gas tank or fuel lines, all to no avail. He cannot detect a leak. I have spent over $1000 trying to fix this problem. …”
NHTSA complaint #10551380, filed 2013-11“The contact stated the odor of gasoline was noticed around the vehicle. It was driven to the dealer, who determined the fuel line on the engine rubbed together with the transmission cable causing a hole in one of the hoses, which needed to be replaced. The transmission cable rubbed a hole in the fuel line , which caused gas to leak onto the engine. Updated 01/10/07.”
NHTSA complaint #10175554, filed 2006-12, 36,000 miles“The contact owns a 2003 Buick Lesabre. The contact stated that the vehicle had the same failure as noted in defect investigation action # ea02030. This failure related to the leak in the intake manifold of the fuel system. The contact smelled antifreeze when he shut off the engine, and the oil and antifreeze leaked out frequently. The failure occurred at approximately 45 MPH. The current and failure mileages were 15,350.”
NHTSA complaint #10188611, filed 2007-04, 15,350 miles“The contact owns a 2003 Buick Lesabre. The contact stated that the fuel leaked on occasion. The vehicle was taken to a private mechanic, who diagnosed the failure. The dealer was notified and offered no assistance. The manufacture was not notified. The failure mileage was 80,000 and the current mileage was 110,000. Updated 09/05/12 the consumer stated the fuel leaked from the plastic fuel line located under the hood over the engine. The entire line from the injection entry to the firewall was replaced with high pressure rubber fuel hoses. Updated 09/05/12”
NHTSA complaint #10464468, filed 2012-07, 80,000 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 |
|---|---|---|
| 2005 | 5 | 6% |
| 2004 | 13 | 8% |
| 2003 | 6 | 4% |
| 2002 | 11 | 4% |
| 2001 | 17 | 5% |
| 2000 | 60 | 9% |
| 1999 | 28 | 13% |
| 1998 | 76 | 19% |
| 1997 | 40 | 10% |
| 1996 | 7 | 7% |
| 1995 | 5 | 3% |
| 1994 | 3 | 2% |
| 1993 | 5 | 3% |
| 1992 | 10 | 5% |
| 1991 | 3 | 10% |
| 1990 | 6 | 13% |
| 1989 | 4 | 15% |
| 1987 | 3 | 8% |
Other parts of the 2003 Buick Lesabre
57 complaintsAir bags
21 complaintsTransmission and drivetrain
18 complaintsElectrical system
15 complaintsVisibility (wipers, defrost, mirrors)
15 complaintsBrakes
14 complaintsOther or unknown
11 complaintsEngine
8 complaintsEngine cooling
8 complaintsSuspension
7 complaintsTires
7 complaintsExterior lighting
5 complaints
← All problems reported for the 2003 Buick Lesabre
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