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hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
60,717 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2003 Chevrolet Impala fuel system problems

fuel system problem

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2003 Chevrolet Impala Owner Comments

problem #9

Jun 012012


  • 30,000 miles


While loading items in the trunk I noticed a strong gas smell. My mechanic did a "smoke test" and could find no problem. It has continued to be a problem. Others have commented on the smell and a friend had the same model car with the same problem and finally traded it in. I have looked on line for recalls. The only thing I found was that on some cars there is a problem with the adhesive between the lining of the gas tank and the tank. It said you would need the gas tank serial number to check if it was one of the ones with the problem. I checked at the local Chevrolet dealership and was told it would be about $300 just to pull the gas tank to check for the serial number.I am concerned that one day it might catch on fire. I just keep hoping it won't but I would like to find out more about this problem

- Bartow, FL, USA

problem #8

Oct 042013

Impala 6-cyl

  • 118,000 miles
Acted as if it dosen't have power steering when turning to the left, very stiff, and jerky. Total cut out on a freeway on ramp for about 20 seconds. When try to put fuel in gas tank have to hold fueling nozzle barley open or it will not take fuel. Drove to work, got off of work went to start it, it would start with out a jump.

- So.Stpaul, MN, USA

problem #7

Mar 112011


  • 60,111 miles
Intake manifold gasket failure.

- Phillipsburg, NJ, USA

problem #6

Jan 172011

Impala 6-cyl

  • 50,000 miles


Fuel leaks from the hose that connects to the fuel injector pressure regulator on my 2003 Chevrolet Impala from time to time with no regular schedule. I am afraid that at some time a fire could result from this leakage. Sometimes this happens at start up and then at other times for reason at all. It is a small amount of leakage. When I detect the smell, I stop and push down on the hose where it connects to the pressure regulator and it seems to stop the smell and the leak.

- Blacklick, OH, USA

problem #5

Oct 012010

Impala 6-cyl

  • 143,000 miles
Problem started with the trans - wasn't shifting right, hard shift. Took it to rotolo Chevy in fontana, ca. Dx: catalytic converter, nearly $800 to get new one only to have the car completely die on the side of the road when the tranny disintegrated. Replaced under warranty. Ever since I have had shifting difficulties - took it back a week later to be told it has a "smart adapt" in trans and needed approx 1000 miles to sync itself, now the car sputters, has a misfire code in cylinder 2, trans code. Hard starts, randomly stalls when making right turns, interior and exterior lights surge when at an idle, car constantly feels like it wants to stall - it can actually make you nauseas when sitting at a stop light because of the surging of the car. This morning the car just stalled when I was at a stop sign. All plugs, plug wires and coil pack for cylinder 2 have been replaced with no correction to how the car runs. Sounds and feels worse when you put the car into reverse, but smoothes out some when in drive. Filed complaint with bar regarding cat replacement, recommended refund to dealer for unnecessary item - dealer refuses to give money back. Told me car would never run right after the tranny was replaced because I refused to have them change the motor mounts. The car has not run right since, but a second opinion found that the mounts were ok - recommended that one of the back mounts be replaced as it was more worn than the others.

- Alta Loma, CA, USA

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problem #4

Aug 102010


  • 40,041 miles
Lower intake manifold gaskets need replaced. I only have 40,000 miles on the car that is a 2003 Impala ls with 3.8 liter engine. Also, coolant hose seal is leaking coolant.

- Lincoln, NE, USA

problem #3

May 012007

Impala 6-cyl

  • Automatic transmission
  • 20,000 miles


The car was bought new from dealership, with occasional grinding noises noted in reverse and headlights "surging" at night while driving. Dealership unable to replicate with the exception of grinding. I was told a loose wire was causing noise in reverse. On 09/26/05, after noticing hard stalls while attempting to start, the fuel pump went out $281.60 for new one. 12/09/05, to dealership for starting concerns and maintenance. 04/13/06-car would not start to leave work. Ward's Chevrolet came to my work site. Left me a rental and kept my car until 04/20/06. I paid $674.56 for a 2nd fuel pump and fuel module. 06/21/06- to local garage with same complaints. $100 paid for "short" in electrical that caused no start and towing. 08/04/06-cooper Buick in monroe, la- $281 for another fuel pump and recall on 2003 Impala headgaskets that I was unaware of. 11/22/06-no start, turn over-went outside 3 hours later-starts with hard start. 12/06/06-brakes went from quiet to grinding-slow hard starts continue. Ward's kept the car for a month-never told me what was wrong with car except brakes. Did not charge. At this time I had requested a GM investi.-no results-states"the dealership was unable to replicate concern". the car continues to have slow, hard starts with very noticeable gas smells. The smell of gas has been occurring since 04/20/06 repairs. Now service, ABS, security lights come on and off intermittently with the smell of gas and slow, hard starts. I have been calling ward's since the first week of March 2007 requesting factory rep. To meet and drive car after their having a month with no improvements in cars functioning. I called this a.M. to be informed that new service dept. Manager was not aware of problem. This is the 4th time since March I have requested the factory rep. With no response from ward's.

- Grayson, LA, USA

problem #2

Jul 102006

Impala 6-cyl

  • Automatic transmission
  • 70,100 miles
Since June 2006, I have noticed that the fuel gauge of my Chevrolet Impala, 2003 (3.4L; 72,000 miles) have been displaying incorrectly the amount of fuel in the gas tank. The fuel gauge has been showing full despite the fact that I have less than half tank of gas. I have been using the trip odometer to guide me in my fuel consumption especially during the first week of July when I made long trip. Are there other reports regarding the erratic fuel gauge operation in this year model of Chevrolet Impala 2003?

- Houston, TX, USA

problem #1

Jul 182005

Impala 6-cyl

  • Automatic transmission
  • 15,200 miles
The consumer states after driving the vehicle, she got out and smelled gasoline. She thought it was a different vehicle in the parking lot. She drove the vehicle home and parked it in the garage. Then the smell was noticed in the garage. The vehicle was then taken to the dealership, and they could not find cause of the problem, but they thought it was the charcoal fuel purge canister in the fuel tank. The dealership stated that because it could not be duplicated they could not fix it. The consumer then called the manufacturer, and they stated they had no knowledge of this problem. The dealership told the consumer not to park the vehicle in the garage because of the hot water heater. Also, stated that if it occurred again, she should drive the vehicle straight to the dealer so they could diagnose the problem. The consumer was going to have the problem corrected at a local mechanic, at her own expense. This occurred on July 18, 2005 on a 2003 Chevrolet Impala. The vehicle was taken to fairway Chevrolet for service at 3100 East sahara avenue, las vegas nv 89104.

- Las Vegas, NV, USA

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