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2008 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.
243
Latest Jun 6, 2025
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.
29%
of 845 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.
5
Injuries or deaths reportedTotals the submitters entered on their own reports in this category. Not verified by NHTSA and not a casualty statistic.
1

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 2008 Chevrolet Cobalt submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 243 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 243, in the owner's own words

Fuel system
Filed Jun 6, 2025

The fuel line is leaking fuel on the drivers side near the passenger door. The leak is to the point where it is pooling under the door on the ground.

NHTSA ID
11665285
Incident
May 30, 2025
ElectricalFuel systemSteering
Filed May 19, 2025

The ignition doest work right n want release the key the car dies n stalls while driving we was almost hit by a trooper n he called we spoke to 2 people n they had a gm call us n they said that this has been a big concern of these cars n we tried n tried to get it fixed n they say sorry can't can they when something they built wrong kills me or my family my vin [XXX] 2008 CHEVY COBALT [XXX] IS MY NUMBER INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID
11661851
Incident
Feb 6, 2025
Fuel system
Filed Sep 9, 2024

The gas lines rusted out and the fuel pump is pooring gas out of it. I just bought the car 2 weeks ago smelled gas hit u set the car it was pouring out. I was going to fix it my self then while looking up the parts I ran across the fact they recalled both parts but not for my vin . What can I do. I'm gonna catch on fire

NHTSA ID
11613382
Incident
Aug 21, 2024
Fuel system
Filed Nov 4, 2023

2008 Chevy Cobalt has become unsafe to drive as it is leaking fuel out the bottom of car

NHTSA ID
11553564
Incident
Sep 1, 2023
Fuel system
Filed Oct 11, 2023

Gas Line corroded near Driver rear wheel due to design of gas line bracket/shield. A bit of research finds that this is not an uncommon occurence and is solely based on the poor design of the shield. Gas leaks on driveway and smell of raw gasoline promoted the finding of this issue. It required complete replacement of gasl line and a total of over $1,000 in total cost.

NHTSA ID
11549361
Incident
Oct 2, 2023
EngineFuel system
Filed Sep 13, 2023

Heavy fuel leak

NHTSA ID
11544308
Incident
Jun 28, 2022
Fuel system
Filed Aug 8, 2023

Fuel lines have developed a leak near exhaust in rear of car. The line has rusted at the part that attaches line to the under body of the car

NHTSA ID
11537192
Incident
Aug 8, 2023
Fuel system
Filed Jun 12, 2023

Fuel lines corroded, very dangerous, had to replace at a high cost to me.

NHTSA ID
11526569
Incident
Jun 7, 2023
Fuel system
Filed Mar 8, 2023

Vehicle has a fuel leak from rear of vehicle. Smells of fuel in cabin. Found shields wet with fuel. Seems there should be some recall on this. This is the 2nd cobalt I've owned with the same issue.

NHTSA ID
11510818
Incident
Mar 8, 2023
Fuel system
Filed Jan 14, 2023

I have a major fuel leak in a fuel line close to the drivers side rear wheel . It's so bad that it was leaving a line of gas on the road as I drove. It smelled of gas a few days prior but I was unable to tell where it originated from.

NHTSA ID
11501738
Incident
Jan 13, 2023
Fuel system
Filed Dec 12, 2022

The contact's son owns a 2008 Chevrolet Cobalt. The contact's son stated while driving at approximately 30 MPH, he could smell gasoline inside the cabin of the vehicle. The contact’s son stated that once he had parked the vehicle, he saw fuel leaking from underneath the rear driver’s side wheel well. The contact stated no warning light was illuminated. The contact had the vehicle towed to a local dealer, where it was diagnosed and determined that the fuel line was corroded and needed to be replaced. The contact researched online and related the failure to NHTSA Action Number: PE20011 (Fuel System, Other). The vehicle had not been repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 70,000.

NHTSA ID
11497109
Incident
Nov 25, 2022
Mileage
70,000 mi
Fuel system
Filed Aug 30, 2022

The contact owns a 2008 Chevrolet Cobalt. The contact stated that the vehicle was leaking fuel on the passenger’s side in front of the rear tire. The contact stated that the fuel odor was also inside the cabin of the vehicle while driving. The check engine warning light was illuminated. The contact had taken the vehicle to an independent mechanic and was informed that the fuel line had failed and needed to be replaced. The vehicle had not been repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 170,000.

NHTSA ID
11482002
Incident
Aug 9, 2022
Mileage
170,000 mi
Fuel system
Filed Aug 27, 2022

On July 17,2018 I saw my 2008 Chevy Cobalt was leaking fuel in my driveway around the driver's side rear tire. I had it towed to my in-town mechanic, as I have Triple A. Paid $613.37 to replace the fuel line. On August 15th, 2022 same exact problem on my 2010 Cobalt. Another $553 to replace the fuel line. Chevrolet sent out a very confusing POSSIBLE recall letter in March 2013. But never officially told owners they would fix the problem with a recall letter. There have been many complaints on this problem on 2005-2010 Cobalts.

NHTSA ID
11481486
Incident
Jul 17, 2018
Fuel system
Filed Aug 1, 2022

The fuel lines on this 2008 cobalt have rusted out and leaving a visible fuel leak puddle after parking. The leak occurs in front of the driver side rear wheel. This area has a heat shield over the fuel line underneath which traps moisture and road salt. This leak has caused me to park my vehicle outside as a safety precaution and not drive it. The leak is near the exhaust which is a large safety risk in my opinion. I am taking to the dealer to have them confirm and quote out repair cost.

NHTSA ID
11477030
Incident
Aug 1, 2022
Fuel system
Filed Jul 23, 2022

I have to replace my fuel lines due to them rusting out over the left rear wheel well. I noticed a distinct smell of gas for a couple of rides to or from work. After a couple of rides, the smell was very strong and I happened to notice the gas dripping down under the car upon inspection. It was taken to a auto repair shop where I was told that this was a serious hazard and the gas lines would have to be replaced costing me $650. The mechanic said that the lines has rusted causing the leak. He also mentioned that this was a common problem with the 2008 chevy cobalt.

NHTSA ID
11475495
Incident
Mar 15, 2022
Fuel system
Filed Mar 8, 2022

The contact's sister owns a 2008 Chevrolet Cobalt. The contact stated that while the vehicle was parked or being driven, there was a fuel odor detected. The vehicle was taken to an independent mechanic and diagnosed with Code: P2270. Additionally, there was a leak in the fuel pump. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 187,000.

NHTSA ID
11455751
Incident
Mar 1, 2022
Mileage
187,000 mi
Fuel system
Filed Dec 18, 2021

I can smell a gas leak inside and outside of car just bought car for girlfriend don't want it to catch fire and kill her and daughter baby in car

NHTSA ID
11444221
Incident
Dec 17, 2021
Fuel system
Filed Nov 4, 2021

The fuel line rusted through and were leaking gas right next to the exhaust pipe! This should not happen!!! I’ve never had to replace fuel lines due to rust on any vehicle I’ve ever owned!!! Inferior metal and or poor design had to contribute to this! Thank God the car didn’t start on fire or blow up. My friend has a 2009 Cobalt and had the same problem!!! It cost me $1478.79 to repair this defect!! No warning other than the terrible gasoline odor!!! Please do something about this before someone is killed!!!

NHTSA ID
11439429
Incident
Nov 4, 2021
Fuel system
Filed Oct 18, 2021

The contact owns a 2008 Chevrolet Cobalt. The contact stated while the vehicle was parked, he noticed gasoline was leaking from underneath the vehicle. There were no warning lights illuminated. The contact was able to drive the vehicle to his residence. The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The dealer and the manufacturer were not notified of the failure. The approximate failure mileage was 200,000. The VIN was not available.

NHTSA ID
11437150
Incident
Oct 14, 2021
Mileage
200,000 mi
Fuel system
Filed Oct 12, 2021

There is a fuel leak with dripping towards the back of the car. I noticed that there is a current NHTSA investigation into such leaks so wanted to let you know of another example.

NHTSA ID
11436471
Incident
Sep 22, 2021
Fuel system
Filed Oct 3, 2021

Fuel line leaking in front of REAR LEFT tire. Looks to be due to rust causing the leak

NHTSA ID
11435291
Incident
Oct 3, 2021
Fuel system
Filed Oct 3, 2021

Fuel leaking from body near left-rear wheel well.

NHTSA ID
11435286
Incident
Oct 3, 2021
Fuel system
Filed Sep 29, 2021

The contact owns a 2008 Chevrolet Cobalt. The contact stated while driving 30 MPH, she smelled a fuel odor. There were no warning lights illuminated. The contact stated she veered to the side of the road and exited the vehicle to determine the origin of the odor. The contact stated the odor was coming from outside of the vehicle. The vehicle was taken to the independent mechanic who diagnosed that the fuel pump needed to be replaced. The contact stated the failure had been reoccurring and the fuel was leaking underneath the vehicle while the vehicle was running. The contact referenced NHTSA Campaign Number: 12V459000 (Fuel System, Gasoline). The dealer and the manufacturer were not notified of the failure. The vehicle was not repaired. The approximate failure mileage was 150,000.

NHTSA ID
11434867
Incident
Jan 29, 2021
Mileage
150,000 mi
Fuel system
Filed Sep 11, 2021

The fuel system has developed a small leak, for now near the left rear tire. I cannot pinpoint the exact location of the leak due to the heat shielding around the lines. My concern is the proximity of the fuel leak to the exhaust system and potential fire hazard. A dealer has not looked at my car, however I have performed maintenance on enough vehicles and aircraft to know when there is a fuel leak. There are no warning lights associated for the leak thus far, there is a tendency for the the vehicle to need to prime itself by cranking in the morning or in cold temperatures.

NHTSA ID
11432603
Incident
Aug 29, 2021
Fuel system
Filed Sep 7, 2021

Began smelling gas while i was driving, took to mechanic to get checked. fuel line was cracked at the fuel pump. had to replace whole assembly.

NHTSA ID
11432027
Incident
Sep 5, 2021

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.

Other components reported on this vehicle

Categories with enough reports to have a page of their own

Elsewhere on this vehicle

Data sources

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