Which parts fail
Components named in complaints (fuel pump, injectors, fuel tank, hybrid and EV propulsion).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2005 Chevrolet Impala owners, lightly cleaned up (personal details are redacted by NHTSA).
Had to recently replace fuel ejection and other part for fuel leaking and fumes overcoming in car. Now the speedometer, fuel and tack gauge stopped working. GM has not recalled this on the Impala and they are aware this is a problem but will not take responsibility. These issues have been a serious safety hazard for my daughter and cannot drive the car. Every Chevy dealership and parts stores think there is a recall until they look it up. Thats how much they are aware of the issues. Once again ill have to pay approx. 300.00 just for the part. Dorman oe solutions instrument cluster. How can we stop GM from getting away with this! We need help!
When I am driving my vehicle the gear shift the stick on it's own.I hear a pop sound when it happens.this happens when I am in motion and driving the car..I have already taken my car in for a recall last year to replace a ignition switch.it has been happening for a few weeks and I thought it was normal,until I was in traffic and it moved on it's own. Also last year I had to have the fuel injector replaced on my car.it had been leaking gas for a while.the dealership told me I would have to pay to have it fixed.there weren't any recalls during the time.
175555 miles fuel smell and fuel loss when car is running. Rough start, some missing. Fuel filter failed at filter inlet spraying gas onto underbody of car so didn't see the fuel spill. Replaced filter and o rings.squealing belt sound at start up. Serpentine belt tensioner broke, replaced tensioner and belt. No check engine warnings, no electronic gauges I have the basic Impala model. Watched the fuel gauge drop by lines while driving and smelled gas when shut off car. Fire hazard, and engine failure if the belt broke completely..another 300$ spent
I am complaining about the just purchased whic was vavoline when placed in vehicle engine thermal viscosity breakdown happened and engine block seized. Restarted after oil change same oil engine block seized. With what I'm reading and watching the third or fourth vehicle towed from the neighborhood maybe it's the motor oil. I understand that high heat breaks down rapidly with soy based lubricants. I understand you might not be able to admit this or are unaware but could you please keep on file.
Intermittent no crank, no start. Problem is known problem with ignition switch, tumbler, and defective "passlock system". Dealers charge excessive proces for repairs that May or May not actually fix the problem. It seems to be a bad design issue, and is related to the defective ignition recalls. There is a fairly extensive complaint list, and the mfr certainly has data reflecting that the problem covers multi model and years of GM cars and trucks.
I purchased this vehicle for suburban Kia in troy. On the third day of driving it, I noticed gasoline smells coming into the car. I took the vehicle back on 1/18/16 and they were not able to find out the cause of the gas smell coming into the car. I will be taking it back on 1/21/16 when they can keep it all day. The smells come when the care is in motion. Enough fumes to take my breath away. I have to drive with the windows open.
Tl* the contact owns a 2005 Chevrolet Impala. The contact noticed a strong fuel odor outside the vehicle. The failure was persistent. The contact also stated that the vehicle surged forward randomly. The vehicle was not diagnosed or repaired. The manufacturer was not aware of the failure. The failure mileage was approximately 114,742. Update 01/15/16 ma
Car has just rolled over to a little over 165,,000 miles and when we bought it at the time we didn't think anything of it and then turns out a year after we bought the car it started smelling like gas big time but we didn't know where it was coming from then when I went to put the car in park the check engine light came on so im like thinking now what and so we take it to a garage and they say oh your entire exhaust system is rusted out and that there's a dollar size hole near the front of the exhaust but we didn't get it fixed becuz we couldn't at the time so they just told me to drive it as is and I have been but I've been noticing that it sounds louder and louder almost like how a car does not have an exhaust system and I really don't feel safe becuz its loud and it smells like gas on the inside and im afraid of it catching on fire one of these days and as for the resistor blower …
Over the last 2 years I have experienced numerous problems. The first problem was shifting of the vehicle which shifts very hard. The second problem was a lot of rust and needing to have body work done. Now with a little over 70,000 miles on the car it might not pass inspection next year because the body/frame is so rusted that it would cost more to have it fixed than the car is worth. The car is well taken care of so it is not for lack of caretaking on my part. The third problem is in the last 2 months periodically we can smell gas in the inside of the car, not exhaust fumes - gas. It's awful; nauseating and unbearable. This smell can also be detected outside of the vehicle. I worry about the health and safety of me and my family in this vehicle for these reasons. Also, at this point I am afraid to park the car in our attached garage for fear it could start a fire.
My vehicle, a 2005 Chevy Impala, has had an issue concerning my fuel pressure regulator. After taking my vehicle to the Chevy dealership to find out what the issue was, the diagnostics test had discovered that the fuel pressure regulator was damaged. I did further research on the issue they discovered I have come to find out that there was a recall on the same exact part on March 12 of 2007. When I returned to pick up my vehicle, they also mentioned another issue about my vehicles steering. This also showed up on the list of recalls for my model/year vehicle. When I asked regarding the issue of why my car was not involved in the recall, they stated that my VIN number is not in the list of cars they felt should be recalled. I was concerned and wondering why would my vehicle not be recalled also when the same exact issued occurred on my vehicle as well.
Fuel System complaints in other Impala years
Frequently asked questions
How common are fuel system problems on the 2005 Chevrolet Impala?
NHTSA has 42 complaints about the fuel & propulsion system of the 2005 Chevrolet Impala, 7% of the model year's 609 complaints. The component named most often is delivery › hoses, lines/piping, and fittings (1 mentions).
Is there a recall for 2005 Chevrolet Impala fuel system problems?
No. NHTSA lists no fuel & propulsion system recall for the 2005 Chevrolet Impala, though it has 1 recall for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2005 Chevrolet Impala fuel system problems start?
Half of the complaints with a recorded mileage happened before about 80,000 miles, and 13% before 25,000 miles.
Is it dangerous?
Owners linked 1 crash, 2 fires and 0 injuries to fuel & propulsion system problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.