Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety. Notes: The 2007 Cobalt inherited most of the problems from the 2005 and 2006 model years, but toned them down (a bit). Sure, the power steering still fails and the car has a chance of going up in flames due to a cracked fuel tank, but it’s not as prevalent as the older models. At least not yet.

In 2012, the Cobalt was recalled for gas tank fires but only for owners in certain states.

Then in 2014, the 2007 Cobalt was part of a massive GM recall due to a defective ignition switch that could cause the airbags to not deploy during an accident. The problem led to 13 deaths, government investigations and multiple class-action lawsuits.


really awful
Crashes / Fires:
7 / 0
Injuries / Deaths:
6 / 0
Average Mileage:
116,436 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2007 Chevrolet Cobalt engine problems

engine problem

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2007 Chevrolet Cobalt Owner Comments (Page 1 of 2)

problem #39

Aug 112016


  • 90,000 miles


The contact owns a 2007 Chevrolet Cobalt. The contact stated that the vehicle emitted a fuel odor. A certified mechanic stated that the vehicle was leaking fuel onto the exhaust pipe. The certified mechanic also informed the contact that the axle fuel lines had severe corrosion. It was diagnosed that the axle fuel lines needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the issue. The approximate failure mileage was 90,000.

- Dayton, OH, USA

problem #38

Apr 252016


  • miles
Low compression in one cylinder (74lbs) causing inspection failure. Four ignition spark coils failed and changed previous to engine fail. Luckily the engine has not blown out, no one hurt. Other owners have the same issue. My vehicle is 9yrs old, under 79,000 miles, oil and filter (which is termed as "special"-it's a corrugated "paper" filter at an additional $12+ every change) changed every 3000 miles. Catastrophic engine failure is not "normal" for a vehicle of this age with no history of overheating or any other issue up to this point! hopefully no one has been or will be injured due to engine seizure or failure while driving. Just informing of possibilities, these vehicles should never have been sold! my vehicle is stationary since the end of April until I can have it repaired.

- River Edge, NJ, USA

problem #37

Jun 062016


  • 1,300,000 miles
The car got very loud driving home from work, got home shut off the engine and it would not start again. Had the car towed to have it looked at, the mechanic reported that the timing chain broke which ruined the engine.

- Morningview, KY, USA

problem #36

Jun 022016


  • 118,000 miles


The vehicle stalled after I stopped the car at a stoplight (city street). Before that (10 mins or so) it was loosing its acceleration power and the engine light came on. I had it towed and the repair place said it was a manufacturing defect and that I would have to have the whole engine replaced. There was a faulty timing chain component.

- Colorado Springs, CO, USA

problem #35

Feb 242016


  • 100,100 miles
The contact owns a 2007 Chevrolet Cobalt. While driving at approximately 35 mph, the vehicle stalled and all the warning lights illuminated on the instrument panel. The vehicle was able to restart. The failure recurred numerous times. The vehicle was taken to a dealer where the cause of the failure was undetermined. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 100,100.

- Bensalem, PA, USA

problem #34

Dec 202015


  • 108,000 miles
The car shuts completely off while driving, it has only happened at low speeds and acts like it just stalled. Once restarted, the car runs fine. This happens at random times both when first starting the car and also after driving long periods.

- Versailles, OH, USA

problem #33

Nov 152015


  • 110,000 miles


At roughly 110,000 on a gently used 07 Cobalt the internal timing chain broke and rendered the engine useless. The repair - a total motor swap for $5K! after I ran into this problem my wife looked up other reviews on the Cobalt and found out numerous people have had this problem. This is a supper expensive error that Chevy has overlooked and costly for the consumer - us! as with others, I went through all the official recalls such as the ignition and power steering, and then I paid an additional $600 for the fuel system to replace - another notorious problem of the Cobalt, and now this!? completely unacceptable. If you cant make a car out of quality parts, don't make one at all! anyways, luckily this happened while we were parked but of course it was very inconvenient plus we had to pay for the tow. It might have showed symptoms of a problem two weeks prior with occasional difficulty starting the car with either prolonged cranking, or even a second try was needed. I don't know what exactly is failing whether it's the plastic parts or the timing chain itself, but there is something here that should be investigated and ultimately lifted to a recall cause there are a lot of people out there affected by this, and $5K isn't something that anybody should have to pay for a corporation's incompetence.

- Brunswick, OH, USA

problem #32

Aug 132015


  • 118,000 miles
I was driving down the road, when a warning signal went off on my car, a message came up that said "engine power reduced" and my cars acceleration was significantly reduced. I could not go over 10 miles an hour and the car was shaking violently. I pulled into a gas station that I was luckily close to, and the car lurched forward as soon as I put it in park, almost causing me to hit the building directly in front of my parking spot. I turned the car off and let it sit for minute, only to turn it back on and have it act completely normal. I have had 3 different mechanics look at it, and several things replaced and the problem still persists. My car cannot go more than 10 minutes without having this issue, and the next time it happened I was on the freeway and it almost killed me and the person behind me. I have read the Chevy forums and complains and I am not the only person having this issue. There are many people, in my position who cannot afford new cars, who bought Chevy's bc of the american name to only be screwed by the corporation. I have no choice but to drive the car as I have to get to and from work in order to live, while this continues to happen every time I drive the car. Someone. Needs to make Chevy accountable for their terrible cars!

- Norwood, OH, USA

problem #31

Aug 242015


  • 180,000 miles
The contact owns a 2007 Chevrolet Cobalt. The contact stated that the vehicle failed to start and the power steering light illuminated. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 180,000. The VIN was not available.

- Edmond, OK, USA

problem #30

Sep 112013

Cobalt 4-cyl

  • miles
Brought 2007 Cobalt on 7/09/14. Reported the problem of the vehicle shutting- off on me and no inspection sticker was on the car 7/10/14. They wrote a work order out. Brought the vehicle to archer auto to get work performed and for a inspection sticker. Archer auto kept my 2007 Cobalt for 3 months. Until I called BBB business and filed a complaint. Archer auto said they fix my vehicle but didn't. archer auto put a illegal inspection sticker on it to pass the emission test. Archer auto returned my vehicle. Then the power steering went out. Brought it to Firestone to get fix. Then later found out there was a recall on the power steering. The 2007 Cobalt was shutting-off on me and losing all power..then I took it back because their was another recall on the vehicle. Then on 9/13/14 the engine shut-off on me. Losing all power, locking the brakes and power steering also. I ran into the back of a vehicle and totaled put the 2007 Cobalt.

- Richmond, TX, USA

problem #29

Mar 092015


  • 140,000 miles


The contact owns a 2007 Chevrolet Cobalt. While driving at approximately 70 mph, the accelerator pedal was depressed and the speedometer remained on 0 mph. The failure recurred numerous times. The vehicle was taken to numerous dealers, who confirmed that the transmission control module needed to be replaced. The vehicle was repaired, but the failure recurred. The manufacturer was made aware of the failure. The failure mileage was 140,000.

- Titusville, FL, USA

problem #28

Jan 102015


  • 100,000 miles
Car just turned off with no power, while backing from driveway. Could not stop the vehicle and ran over my boyfriends foot. Two neighbors were able to stop my vehicle since wasn't going fast. No warning. Vehicle would not restart. Just passed annual inspection and always followed maintenance schedule. It should be noted that my boyfriend injured his foot and wants to file a claim with my trying to talk him out of it because I don't feel I was at fault and I don't want my rates to increase. Chevy Corp should resolve this issue before someone dies. I took my vehicle to the Chevy dealer and they want to replace my engine at my cost. $3800.

- Philadelphia, PA, USA

problem #27

Oct 102014

Cobalt 4-cyl

  • 129,317 miles
I was driving in town and suddenly lost all power. I had to use the momentum of the car to move over 2 lanes of traffic in order to get pulled to the side of the road. Had it towed to the mechanic and found out that both the fuel pump and the electrical panel under my fuse box had gone out. This cost me over $1800 to have fixed and the mechanic states GM was aware of the fuse box issue and to watch for a recall. Also the fuel pump was a specialty that was not placed in most cars of this year/model and had to be ordered from the factory. The problems that are happening with these cars are ridiculous. GM should have to pay the owners to have the entire car replaced.

- Anderson , CA, USA

problem #26

Mar 052014


  • 80,000 miles
First the battery died in the car. After that the car fell apart. The keys became lodged in the ignition and would not come out. The stereo lost all and complete power. Fuses were checked for the radio none were blown. As a result of the keys being stuck in the ignition, it drained power from the battery and I had to turn the interior overhead light to on and the car would then regain power and start. All except the radio. The recall for the ignition cylinder was announced and I had the car serviced at a GM dealer. After the repair of the ignition cylinder the keys still were lodged in the ignition switch. I was told the switch lever needed to be replaced. How could a dead battery cause all of this at once. The radio and electrical issues happened directly after the battery died and never returned back to normal even after purchasing a brand new battery.

- Arvonia, VA, USA

problem #25

Aug 012013


  • 70,000 miles
The contact owns a 2007 Chevrolet Cobalt. The contact stated that while driving various mph, the RPM gauge and the speedometer flutter between 0 to 20 mph and the fuel gauge read empty. The security locks and power steering light remained illuminated at all times. In addition, the engine stalled. The failures recurred daily. The vehicle was taken to a dealer. The technician was unable to duplicate the failure. The manufacturer was notified of the issue. The failure mileage was 70,000.

- Troutdale, VA, USA

problem #24

Aug 162014


  • 100,018 miles
The contact owns a 2007 Chevrolet Cobalt. The contact stated that while driving at 40 mph, the power steering failed and the check engine warning light illuminated. The vehicle was not diagnosed or repaired. The failure mileage was 100,018.

- Berne, IN, USA

problem #23

Feb 152014


  • 88,000 miles
The contact owns a 2007 Chevrolet Cobalt. The contact stated that while driving 30 mph, the vehicle stalled without warning. The vehicle was restarted and functioned normally. The failure recurred on several occasions. The vehicle was taken to a dealer to be serviced for NHTSA campaign number 14E021000 (component not listed), however the part needed was unavailable to perform the repair. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 88,000.

- Miami, FL, USA

problem #22

Jun 042014


  • 108,000 miles
My daughter was driving home on the highway during rush hour traffic when the temp light came on showing 240 degrees and the fan kicked on and the light went off. The temp light came back on at 304 degrees and the car died while in motion. Without spending alot of money to find specifics, the mechanic is unsure why the cooling system failed currently looking at the possibility of having to replace the engine in its entirety.

- Liberty, MO, USA

problem #21

Jun 172014

Cobalt 4-cyl

  • Automatic transmission
  • 97,000 miles
The contact owns a 2007 Chevrolet Cobalt. The contact stated that while driving 20 mph, the vehicle stalled due to ignition issues and caused the contact to crash into another the vehicle. A police report was filed and no injuries were reported. The vehicle was towed to an independent mechanic. The vehicle was destroyed. The manufacturer was made aware of the failure. The failure and current mileage was 97,000. Updated 09/15/14 updated 1/13/2015

- Methuen, MA, USA

problem #20

Aug 082013

Cobalt 4-cyl

  • miles
2007 Chevrolet Cobalt. Consumer writes in regards to vehicle repairs and requests reimbursement. The consumer stated the vehicle started smoking, as she was driving down the street. She stopped to a gas station, and had the vehicle inspected. The mechanic, informed her there was no oil in the engine. Also, the driver and passenger door locks were not working. The door lock switch was replaced.

- Baton Rouge, LA, USA

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