2008 Chevrolet Cobalt Fuel/propulsion System Problems
Owners have filed 202 complaints with NHTSA about fuel/propulsion system problems on the 2008 Chevrolet Cobalt, 24% of all complaints for this model year. Half of the reports with a mileage happened before 103,000 miles. The words owners use most often: “fuel leak” (20% of reports).
- 202fuel/propulsion system complaints
- 103,000median miles at failure
- 0mention a crash
- 0mention an injury
- 0related recalls
- $980typical repair cost reported by owners
- 27%of reports with a speed happened at 50+ mph
What owners describe
Phrases that appear unusually often in these complaints compared with complaints about other cars.
- Fuel leak: mentioned in 41 of 202 complaints (20%)
- Rear tire: mentioned in 17 of 202 complaints (8%)
- Strong smell: mentioned in 14 of 202 complaints (7%)
How much does it cost to fix?
Owners who wrote down what they paid or were quoted put the typical fuel/propulsion system repair on the 2008 Chevrolet Cobalt at $980, and half of them between $830 and $1,150.
Based on 12 NHTSA complaints about this problem alone that state a repair bill or quote (2012–2023), converted to 2026 dollars with the U.S. consumer price index. These are owners' own figures, not a quote: they include dealer quotes, and owners who file complaints often faced larger repairs, so they can run higher than typical shop prices. Prices vary by shop, region and warranty coverage. How we calculate this.
At what mileage do fuel/propulsion system problems happen?
Based on 154 complaints that reported the odometer reading.
How serious are the reports?
Of 202 complaints, 4 a fire.
Chevrolet Cobalt fuel/propulsion system complaints by model year
| Model year | Fuel/propulsion System complaints | Share of that year | Median miles |
|---|---|---|---|
| 2016 Cobalt | 1 | 100% | 200,000 |
| 2010 Cobalt | 101 | 18% | 104,000 |
| 2009 Cobalt | 226 | 32% | 97,454 |
| 2008 Cobalt | 202 | 24% | 103,000 |
| 2007 Cobalt | 283 | 18% | 95,500 |
| 2006 Cobalt | 255 | 11% | 99,433 |
| 2005 Cobalt | 38 | 2% | 109,000 |
| 2000 Cobalt | 1 | 100% | — |
When owners reported it
Related recalls (0)
No safety recall lists fuel/propulsion system for the 2008 Chevrolet Cobalt. A pattern of complaints does not always lead to a recall.
What owners report
Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.
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.
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…
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…

Frequently asked questions
Do all 2008 Chevrolet Cobalts have fuel/propulsion system problems?
No. NHTSA has 202 owner complaints about fuel/propulsion system for the 2008 Chevrolet Cobalt (24% of the 845 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.
Was there a recall on the 2008 Chevrolet Cobalt fuel/propulsion system?
No recall currently lists fuel/propulsion system for this vehicle.
At what mileage do fuel/propulsion system problems start?
The median reported mileage is 103,000 miles: half of the reports with a mileage came before that.
How much does it cost to fix fuel/propulsion system problems on the 2008 Chevrolet Cobalt?
Owners report a typical cost of $980 (half paid between $830 and $1,150), from 12 complaints that state a repair bill or quote, in 2026 dollars.
What do owners say about fuel/propulsion system problems on the 2008 Chevrolet Cobalt?
The most frequent phrase is “fuel leak”, in 41 of 202 complaints, followed by “rear tire” (17).
Other 2008 Chevrolet Cobalt problems
- Steering problems (309)
- Electrical System problems (166)
- Air Bags problems (98)
See all 2008 Chevrolet Cobalt problems or fuel/propulsion system problems across all Cobalt years.