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Engine coolingPart report

2005 Chevrolet Cobalt Engine cooling Problems

Complaints
51about this part
Share
3%of 1,649 total for the year
Median mileage
45,000miles
Trend
StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.

NHTSA recorded 51 complaints about the engine cooling of the 2005 Chevrolet Cobalt, 3% of the 1,649 complaints for this model year. Where a mileage was given, the median is 45,000 miles. 3 a fire, according to the filers.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Car stalls while driving down the road, pulling out, sitting still. Has been doing it alot I have 95,000 miles I took it to be put on the scoop at the dealership and it didn't read anything. Had it to numerous shops and no one know what the problem is. It is very dangerous and I have children. Chevy should be made to recall them. All I have read on the internet is the same problems as im having and nothing is being done about it. …”

NHTSA complaint #10343180, filed 2010-07, 80,000 miles

“The check engine light came on so I took the vehicle straight to the dealership. They said it was a history code and not a big deal, so they reset it. After leaving the dealership it came back on so I went to a different dealership. They said the same thing and said they don't know why it is coming back on.”

NHTSA complaint #10212661, filed 2007-12, 24,420 miles

“I own a 2005 chevy Cobalt and as I was driving it began to act almost like it was going to stall out on me as in driving on a major highway! My power steering is shot and needs to replaced I haven't had it that long got in aug 2008!”

NHTSA complaint #10301685, filed 2010-01, 45,000 miles

“My 2005 chevy Cobalt sedan randomly shuts off while driving. So far it has happened about 6 times. The first time was a few months ago. I was driving at a speed of about 30mph making a left turn crossing a very busy lane of oncoming traffic when the car just shut off. The radio was still on but if I pressed on the gas, nothing. I had to put the car in park, shut off the ignition and then restart it. It immediately started back up. …”

NHTSA complaint #10188848, filed 2007-04, 27,000 miles

“I was driving on the highway at 75-80 MPH when the engine suddenly stopped. Reduced engine speed and engine disabled warnings scrolled across the illuminated on the instrument control panel. After pulling over to the shoulder, I was able to restart the car and continue driving without further incident. Prior to this, I noticed that the vehicle's rpms dropping and then nearly stalling when slowing down at traffic lights or stop signs. I took the vehicle to the dealer and they replaced the throttle body and ECM. …”

NHTSA complaint #10378837, filed 2011-01, 138,000 miles

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
201041%
2009122%
200891%
2007242%
2006432%
2005513%

Other parts of the 2005 Chevrolet Cobalt

Steering
1,143 complaintsElectrical system
323 complaintsTransmission and drivetrain
99 complaintsAir bags
71 complaintsEngine
69 complaintsFuel system
56 complaintsBrakes
49 complaintsSuspension
47 complaintsOther or unknown
46 complaintsBody and structure
46 complaintsVehicle speed control
40 complaintsEquipment
35 complaints

← All problems reported for the 2005 Chevrolet Cobalt

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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