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2009 Chevrolet Cobalt Fuel system Problems

Owner-reported complaints naming the fuel system system, filed with NHTSA

Data refreshed

Fuel system reportsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
261
Latest Mar 30, 2026
Share of all reportsThis category as a share of every owner report on file for this model year. One report can name more than one component, so the categories overlap.
37%
of 710 total
Crash or fire reportedReports in this category whose submitter recorded that a crash or a fire occurred. The reporter's own answer on the NHTSA form, not a verified finding.
6
Injuries or deaths reportedTotals the submitters entered on their own reports in this category. Not verified by NHTSA and not a casualty statistic.
0

What this page shows

Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks. Every record below is an owner-reported complaint about the 2009 Chevrolet Cobalt submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 261 reports on file name it.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Owner reports naming fuel system

The 25 most recent of 261, in the owner's own words

Fuel system
Filed Mar 30, 2026

The contact owns a 2009 Chevrolet Cobalt. The contact stated that the vehicle was taken to an independent mechanic for repair; however, the mechanic found a fuel leak and an abnormal gasoline odor. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 17,311.

NHTSA ID
11728020
Incident
Mar 23, 2026
Mileage
17,311 mi
AirbagsElectricalFuel system
Filed Dec 21, 2024
Crash reported

The air bag never deployed I bought car in 2018 from original owner with car only having 33,000 miles on it and still under warranty til car had 100,000 miles and I hit a deer head on 2 months after getting car which bought in may of 2018 hit the deer in July 2018 . The deer was hit with the front passenger side it broke my headlight n messed my hood up and smashed in the grill little and my air bags never deployed I hit deer at 50 mph , after that had happened I took it in to Chevy dealership and had them look at car cause I told them I hit that deer and air bag never deployed and that my air bag light came on once in awhile and said service air bag . The dealership said they do that sometimes and did something to make light go off that was it my air vag light still comes on and says service air bag . Also ignition switch and fuel smell foul coming from car a lot and is as I speak . My reduce engine power light comes on a lot and have no power to gas pedal n car won’t stay running . I have try to get two recalls fixed back in 2-21 I was having problems with my car back then too special reach called me in Jan of 2021 and told me that there were two recalls on my car ignition switch and fuel module so I informed dealership when I took my car in That next month in feb 21 told them I was informed on 2 active recalls on my car . When they were done with my car later that day I asked them if they fixed the recalls they said no cause it was map sensor so I then made an appt to get recalls fixed when I got there for the recalls to be fixed one of the technicians told me it shows that they were done . I called Chevy and complained about the issue I just had and never had recalls fixed but they must of put it in computer they fixed them So I’ve been really upset that I been trying to get past recalls fixed that are on my car and I get run around and told there isn’t any I know about a past recall on shift selnoid low circuit too that was a past recal

NHTSA ID
11631947
Incident
Feb 20, 2021
Fuel system
Filed Aug 21, 2024

There is a leak in the fuel lines that is just awful. Constant while driving Many others have experienced as well. Leaves huge puddles of gas

NHTSA ID
11609896
Incident
Aug 21, 2024
ElectricalFuel system
Filed Apr 25, 2024

The contact owns a 2009 Chevrolet Cobalt. The contact stated while attempting to start the vehicle, the vehicle failed to start and was jumpstarted; however, the auto theft warning light illuminated, and the key could not be removed from the ignition. The contact was able to drive the vehicle however, the locks failed to lock the doors, and there was a clicking sound when the windows failed to roll up or down. The contact stated that after refueling the vehicle, the vehicle was consuming an excessive amount of fuel. The contact stated that the tank was full however, the next day the fuel tank was empty. The dealer was contacted. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 161,595.

NHTSA ID
11585314
Incident
Apr 1, 2024
Mileage
161,595 mi
EngineFuel system
Filed Oct 4, 2023

The contact owns a 2009 Chevrolet Cobalt. The contact stated that after driving to a local store and turning off the vehicle, the contact then returned to the vehicle however, the vehicle failed to restart. The vehicle was towed to the residence. The vehicle was diagnosed by an independent mechanic. The contact was informed that the fuel level sensor circuit and cam shaft position sensor had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was approximately 153,000.

NHTSA ID
11548298
Incident
May 15, 2023
Mileage
153,000 mi
Fuel system
Filed Jul 19, 2023

My Cobalt 2009 has gas leaking in front of the back driver's side wheel. This has been report it seems by several people online that I have found. Why can not GM cover this repair in a recall? I've tried to call around for pricing but most garage's won't give me a quote over the phone. The best I got was that this would cost around 2000-3000 for replacement. But it seemed like a shot in the dark on the pricing. I called the local dealership near me in Darian Connecticut, and was told that this was not covered under any recall. Corrosion protection coverage expired in 2019 from GMs site. But why would a fuel line be made of a metal that rust and is near the hot exhaust requiring a heatshield on the pipes? Aftermarket repairs seems to be either Braided Stainless Steel around Nylon, or Some Nickel/Copper Piping using compression fittings that plumbers use.

NHTSA ID
11533270
Incident
Jul 17, 2023
Fuel system
Filed Jul 5, 2023

Fuel leak very strong gas smell

NHTSA ID
11530524
Incident
Jun 21, 2023
Fuel system
Filed Jun 28, 2023

The contact owns a 2009 Chevrolet Cobalt. The contact stated while driving 30 MPH, there was an abnormal fuel odor inside the cabin of the vehicle. The contact stated there was no warning light illuminated. The contact stated after arriving at his residence, he became aware of a puddle of fuel underneath the vehicle. The contact called the local dealer and made them aware of the failure. The vehicle was not diagnosed or repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 37,000.

NHTSA ID
11529392
Incident
Jun 25, 2023
Mileage
37,000 mi
Fuel system
Filed Jun 27, 2023

The contact owns a 2009 Chevrolet Cobalt. The contact stated that there was a strong fuel odor coming from the vehicle while driving and while the vehicle was parked. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, where it was determined that there was a fuel leak. The vehicle was not repaired. The dealer and the manufacturer were not notified of the failure. The failure mileage was approximately 152,816.

NHTSA ID
11529147
Incident
Jun 20, 2023
Mileage
152,816 mi
Fuel system
Filed Jun 21, 2023

There is a gas leak an after reviewing online there are several complaints of chevy colbalt 09 owners whos car forms a gas leak on the driver side of the car near back seat. There is a very strong smell of gasoline and seems to be a repeated issue

NHTSA ID
11528202
Incident
Jun 21, 2023
Fuel system
Filed Jun 1, 2023

The contact owns a 2009 Chevrolet Cobalt. The contact stated that she smelled an abnormal odor inside the vehicle. The vehicle was taken to the dealer, where the fuel lines were replaced; however, the failure recurred. The contact related the failure to NHTSA Campaign Number: 12V459000 (Fuel System Gasoline). The manufacturer was made aware of the failure. The failure mileage was unknown. The VIN was unavailable.

NHTSA ID
11524835
Incident
Jan 15, 2023
Fuel system
Filed Apr 27, 2023

Vehicle is leaking fuel from rusted fuel line near drivers side rear tire. Apparently a common issue with this model with no recall.

NHTSA ID
11519198
Incident
Apr 25, 2023
Fuel system
Filed Jan 14, 2023

2009 Chevy Cobalt, Driving to work Friday January 13 2023, noticed heavy smell of gasoline. parked car and noticed a puddle just in front of the drivers side rear tire. Got it home and did an inspection of the area and discovered a fuel line leak when car is running and line is under pressure. It is a big leak seemingly caused by rust developing on the line because of a heat shield trapping water and debris. This leak is very close to the hot exhaust system. Fire is an obvious possibility. I'm afraid to even drive it to a shop. I plan on having it towed.

NHTSA ID
11501782
Incident
Jan 13, 2023
Fuel system
Filed Nov 8, 2022

Fuel leaking from near top of tank/pump. Sounds similar to other recalls though my VIN is not currently included. Noticed fuel smell in garage and could see fuel from top of tank. No indicators showing a malfunction.

NHTSA ID
11492834
Incident
Nov 7, 2022
EngineFuel system
Filed Oct 11, 2022

The contact owns a 2009 Chevrolet Cobalt. The contact stated while operating the vehicle the check engine light would remain illuminated and the odor of fuel was present inside the vehicle. Upon inspection, it was discovered that the fuel had leaked from near the rear passenger-side wheel area. The contact discovered that the leak was due to a corroded and damaged fuel line. In addition, it was discovered that the fuel line connecting to the fuel filter was corroded and damaged. The vehicle was not yet repaired. The local dealer and manufacturer were not contacted regarding the failure. The failure mileage was 97,600.

NHTSA ID
11488820
Incident
Oct 2, 2022
Mileage
97,600 mi
Fuel system
Filed Oct 10, 2022

Fuel pump leak: fuel pump line started spewing fuel over ground during engine start. Engine wouldn’t not start due to high pressure fuel leak.

NHTSA ID
11488592
Incident
Oct 9, 2022
Fuel system
Filed Aug 7, 2022

Strong smell of gas inside vehicle. Gas is leaking from vehicle. Known problem of fuel leakage and vehicle recalls.

NHTSA ID
11478010
Incident
Jul 28, 2022
Fuel system
Filed Aug 1, 2022

The vehicle had an instance of hard starting, then I became aware of the odour of fuel in my car which quickly made me exit the vehicle as the fumes were strong. Liquid fuel was leaking out of the left rear in from of the wheel area, in proximity to the exhaust system

NHTSA ID
11476979
Incident
Jul 30, 2022
Fuel system
Filed Jul 26, 2022

The contact owns a 2009 Chevrolet Cobalt. The contact stated that the odor of fuel was present inside and outside of the vehicle. Additionally, the odor was present whether the vehicle was on or turned off. The cause of the failure was not yet determined. The contact stated that no visible fuel leaks were present. The local dealer was contacted regarding the failure and the contact was informed that the vehicle was not included in the NHTSA Campaign Number: 12V459000 (Fuel System, Gasoline). The contact indicated that the vehicle had experienced the failure listed in the recall. The failure mileage was 150,000.

NHTSA ID
11475860
Incident
Jul 25, 2022
Mileage
150,000 mi
Fuel system
Filed Jun 9, 2022

Leak in fuel line

NHTSA ID
11468544
Incident
Jun 9, 2022
Fuel system
Filed May 15, 2022

Noticed gas smell inside and outside of car.

NHTSA ID
11464743
Incident
May 1, 2022
ElectricalFuel system
Filed May 15, 2022

Wiring harness is located too close to the human under the driver's seat. Exposes the driver to electrical frequencies that could be avoided if the wire harness was a further distance away from the human. Also, the the fuel line rusted through after 9 years about 9 inches away from the rear axle where the metal tape ends around the fuel line. The metal tape seems to allow more moisture to become trapped around the fuel line; which promotes rust and a leak where the metal tap ends. After the metal tape, the fuel line is in good condition on this specific vehicle. The fuel leak is about 0.5 inches wide and a lot of gasoline drips / leaks after the car is started. The rust particles are located after the fuel filter; which may promote the rust particles to reach the engine via the rusted fuel line. The car has trouble starting (a delay) and needs to have the key turned twice due to the leak. The leak is very close to the muffler, so it seems like it would be at risk of catching on fire if the muffler was hot enough or if it were traveling on a long trip or going up or down a steep hill. The vehicle has been inspected by police. There were no warning lamps or lights.

NHTSA ID
11464722
Incident
May 13, 2022
Fuel system
Filed May 4, 2022

I have noticed when car is parked in garage that there is a gas odor present in the garage. It appears the gas odor is the strongest around the driver side, rear wheel. I do not yet see any severe drips anywhere but it is enough to cause concern about parking the car in a closed up garage. especially in winter with a heater running... I have not yet brought it into a dealer to have it checked. This car is located in a midwest climate where salt is used on roads which would cause possible issues with corrosion.

NHTSA ID
11463312
Incident
Jan 11, 2022
Fuel system
Filed Mar 26, 2022

Fuel line leak occurred at approximately approx. 76,700 miles requiring immediate repair as gasoline was leaking out at a continuous rate. Dealership indicated this is a common issue with the Cobalt. No warning lights other than difficulty starting vehicle and then smell of gas.

NHTSA ID
11458411
Incident
Mar 23, 2022
Fuel system
Filed Feb 11, 2022

There is gas puddling around the driver rear tire. I saw an article, which can be found here: https://www.thecarconnection.com/news/1128764_more-than-600-000-chevy-cobalt-and-hhr-models-investigated-for-fuel-leaks Gas leaking is an obvious safety problem due to the risk of fire or worse. The symptoms began yesterday - February 11, 2022. I did bring the vehicle to Bob McCosh Chevrolet in Columbia, Missouri. They reported there are no recalls on that system. But as the article link above confirms, I am certainly not alone in this problem. I believe this problem is being investigated but no recall has been issued. I will also follow up with the service manager at Bob McCosh Chevrolet in Columbia, Missouri. I will escalate to the regional service manager for Chevrolet. In the meantime, it would be very helpful if the weight of the FHTSA could get behind this problem. I can be reached at [XXX] if you have additional questions. My email is [XXX]. Thank you. [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

NHTSA ID
11451477
Incident
Feb 10, 2022

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

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