2008 Chevrolet Cobalt Fuel system Problems
- Complaints
- 243about this part
- Share
- 29%of 845 total for the year
- Median mileage
- 100,838miles
- Trend
- FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA recorded 243 complaints about the fuel system of the 2008 Chevrolet Cobalt, 29% of the 845 complaints for this model year. Where a mileage was given, the median is 100,838 miles. 1 of these say a crash was involved and 4 a fire, according to the filers. 1 recall campaign on record is filed under a similar system.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I have been noticing a gas smell for a few weeks and with further investigation I noticed that gas was leaking near the clip that holds the lines up by the driver's side rear tire. My mechanic noticed that when he cut back the heat shield that was a rusted out hole causing the leak. Both the fuel and the return line have rusted and are leaking.”
NHTSA complaint #11361525, filed 2020-09, 155,000 miles“Went to drive car today, while at the first stop sign, waiting for traffic I started smelling gas, got to my destination, and looked under the car, and gas was dripping very fast from just in front of the left rear tire, within 1 inch of the exhaust pipe, it appears to be leaking from numerous spots by the left rear tire”
NHTSA complaint #11341170, filed 2020-07, 120,000 miles“The fuel line rust out and leaks gas. This is a very dangerous situation but apparently not covered by recall 12v459000. This gas leak should defiantly included in that recall. My car is driven by a teenager and he did not notice the leak until I saw it. The repairs were over $800.00. This happened to both of our chevy cobalts in the same week.”
NHTSA complaint #11076038, filed 2018-03, 70,000 miles“Fuel line leak driver side rear of vehicle. Caused by heat sleeves put over the line by the manufacturer causing water to get trapped inside rotting out the fuel line. I was lucky this did not happen when car was at 210 operating temperature or I would have been burned up at 1200 degrees.”
NHTSA complaint #11405671, filed 2021-03, 114,000 miles“I noticed the smell of gasoline outside of my car while parked. I noticed a few drops of gasoline on the ground under my car. I took my car to the shop for diagnosis and they said it was a very common problem with this year and model vehicle. It is a leak in the fuel line caused by a faulty design where a heat shield is prone to collect salt, dirt, etc. At the metal line which causes corrosion.”
NHTSA complaint #11355030, filed 2020-09, 135,000 milesRelated recalls
- 12V459000Sep 19, 2012General Motors (GM) is recalling certain model year 2007 Chevrolet Equinox and Pontiac Torrent vehicles originally sold or currently registered in Arizona…Covers: Chevrolet Cobalt 2007–2009, Pontiac G5 2007–2009, Torrent 2007 +2 more
Related service bulletins
- 11007095Aug 7, 2024This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles…
- 11004727Jun 29, 2024This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
- 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…
- 10250505Feb 7, 2024This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.
- 10241417Aug 1, 2023This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
- 10222766Sep 16, 2022This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles…
- 10222765Sep 14, 2022This service bulletin provides the technician with additional information on fuels, fuel additives and fuel management.
- 10222739Sep 13, 2022This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
- 10218873Aug 10, 2022This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.
- 10213816May 26, 2022This Preliminary information communicates provides information to the technician on the use of R-99 or R-95 Renewable diesel fuel.
Fuel system: other model years
Other parts of the 2008 Chevrolet Cobalt
309 complaintsElectrical system
166 complaintsAir bags
98 complaintsEngine
36 complaintsBrakes
31 complaintsTransmission and drivetrain
29 complaintsSuspension
27 complaintsOther or unknown
22 complaintsVehicle speed control
22 complaintsExterior lighting
18 complaintsSeat belts
18 complaintsElectronic stability control
17 complaints
← All problems reported for the 2008 Chevrolet Cobalt
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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