Problems with 2009 Chevrolet Cobalt ENGINE AND ENGINE COOLING

I drove my car around 7:15 am until about 10:00 am. everything was fine. when i started it up again i heard this loud noise coming from the engine. it sounded like a diesel truck. my flex pipe was disconnected. this attached to the manifold. i didn't hit anything to cause this problem. i asked the repair man what could have caused it and he didn't have an answer.

I took my 2009 chevrolet cobalt 1lt sedan to the dealership from where i purchased it from today to get my vehicle inspected as required per my state. prior to today, for about the past week or so, my check engine light came on. went to autozone and they ran a diagnostic on it saying a cam shaft position sensor needed replacement. replaced it and check engine light went away for about a week then came back on. (replaced both of the sensors to be safe) check engine light would turn off for days then randomly come on. went to dealership and they stated i needed a new front right strut since mine's was leaking. called up a few other mechanics and they have said this is a common issue with cobalts. if you google "cobalt strut leaking", there are many results, yet no recall. this isn't just common in my vehicle's model year but with all cobalts. i feel there should be a recall since this is common among this make/model. *tr

The key will not turn in the ignition cylinder. therefore the car will not turn off. there is a special bulletin #10256 about this exact problem including only the 2009 cobalt however as there is not an open recall the manufacturer will not repair my car because my car has a branded title and they will only repair 'open recall' items. this issue is not listed in the global database when my vin is searched but it needs to be listed under my vin and there needs to be an open recall on this issue because it is certainly a huge safety problem that many owners have been experiencing. the only way to turn the car off is to get under the hood and remove the fuel relay fuse. in case of a fire this would be a catastrophic safety issue which could result in serious injury or even death. *tr

Car ran hot and burnt up engine. *kb

I was on the highway driving from new orleans, la to meridian, ms. when i was about 35 miles outside of meridian, ms, my car shut off and a cloud of white smoke came from the engine. none of the indicator lights came on to let me know that there was a problem. i had the 2009 chevy cobalt towed to the nearest chevy dealer in meridian who told me that the engine was defective and a rod had slipped out of the engine. this took just over two weeks to order the new engine and repair it. the very next day after the engine was repaired, i had the car started but when i went to turn it off, the key was stuck in the ignition. i tried to remove the key but it would not budge. as a result, the engine began to overheat. the tow truck driver had to disconnect the fuses and battery and allow the car to cool before he could tow it. *tr

Tl* the contact owns a 2009 chevrolet cobalt. while the contact was driving approximately 5 mph over a pothole, the engine stalled without prior warning. the engine failed to restart and the vehicle was towed to an authorized dealer for diagnosis where they informed the engine would need to be replaced. currently, the engine was being replaced with a rebuilt engine. the contact was in the process of notifying the manufacturer of the defect. the approximate failure mileage was 23,000. the vin was unavailable.

I own a 2009 chevrolet cobalt and have been experiencing a significant rumble when the car is warm and in gear. the car has been taken to an authorized chevrolet dealership and they will not correct the problem, although my personal mechanic has been able to replicate the problem. i complained to general motors and they refuse to handle the case. their only response is to suggest that i trade the car in for a ford and contact my attorney. *tr

Tl*the contact owns a 2009 chevrolet cobalt. the contact states that the door handle broke. the muffler fell off of the vehicle while driving 35 mph. two months later, the gear shift was broke. the vehicle was taken to the dealer for diagnostic testing. the gear shift was repaired; however, the contact was unable to shift into fifth gear. the weather was not a factor. on february 17, 2010, the power steering failed and the steering wheel began pulling to the left which made it difficult for the driver to maneuver the steering wheel to the right. the dealer offered the contact $13,500 for the purchase of the vehicle. the contact stated that the vehicle was being repaired by the dealer for one month and one week. the current and failure mileages were 7000.

Tl*the contact owns a 2009 chevrolet cobalt. the contact was driving approximately 30 to 35 mph on normal road conditions. suddenly, smoke expelled from the front end of the vehicle. the driver pulled over to the side of the road to inspect underneath the hood and the engine compartment was engulfed in flames. the fire and police department were called to the scene. the fire department extinguished the fire. the vehicle was completely destroyed and towed to a collision center. there were no personal injuries. the cause of failure has not been determined at this time. the failure mileage was 8,000. updated 03/01/10 *bf updated 09/07/10*jb

When traveling over 30-35 mph, and braking hard (locking up the tires), the engine shuts off. which results in a loss of power steering, power brakes, etc. i was traveling on a snow covered road and wanted to know how the car handled. while going straight at about 35 mph on icy road, i applied the brakes to lock up the tires. the car continued straight ahead (good). i let off the breaks, at which point i noticed the car was not running. i notified the dealer- could not recreate, the second time i demonstrated it for them. they were able to recreate it on another car. this happened during the winter of 2009-2010. *tr