2008 Chevrolet Cobalt Fuel/propulsion System Problems

Source: NHTSA · Updated Jul 23, 2026 · 202 complaints analyzed

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).

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.

Under 10k miles1 · 1%
10k–25k miles1 · 1%
25k–50k miles5 · 3%
50k–75k miles31 · 20%
75k–100k miles35 · 23%
100k–150k miles56 · 36%
150k+ miles25 · 16%

How serious are the reports?

Of 202 complaints, 4 a fire.

Chevrolet Cobalt fuel/propulsion system complaints by model year

Peak: 2007, with 283 complaints
2000: 1200012005: 382005382006: 25520062552007: 28320072832008: 20220082022009: 22620092262010: 10120101012016: 120161

n = 1,107 complaints · Source: NHTSA

Model yearFuel/propulsion System complaintsShare of that yearMedian miles
2016 Cobalt1100%200,000
2010 Cobalt10118%104,000
2009 Cobalt22632%97,454
2008 Cobalt20224%103,000
2007 Cobalt28318%95,500
2006 Cobalt25511%99,433
2005 Cobalt382%109,000
2000 Cobalt1100%—

When owners reported it

Peak: 2012, with 31 complaints
2012: 312012312013: 5201352014: 122014122015: 172015172016: 172016172017: 242017242018: 262018262019: 162019162020: 202020202021: 212021212022: 3202232023: 7202372024: 1202412025: 220252

n = 202 complaints · Source: NHTSA

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.

Received Jun 6, 2025 · NHTSA complaint 11665285

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…

Received May 19, 2025 · NHTSA complaint 11661851

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…

Received Sep 9, 2024 · NHTSA complaint 11613382
Chevrolet Cobalt
2005-2007 Chevrolet Cobalt photographed in USA.. Representative photo; appearance varies by model year. Photo: IFCAR, Public domain, via Wikimedia Commons.

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

See all 2008 Chevrolet Cobalt problems or fuel/propulsion system problems across all Cobalt years.