2005 Chevrolet Cobalt engine problems

Owners reported engine problems in 117 complaints for the 2005 Chevrolet Cobalt, 5% of the complaints on file. It is the 3rd most reported problem area for this model year.

Complaints: 117 5% of this year's complaints
Typical mileage: 80,000 miles 102 complaints with mileage
Crashes and fires: 5 and 3
Injuries and deaths: 4 and 0

Source: NHTSA owner complaints

When engine problems show up

Based on 102 complaints that include mileage. 36% were reported before 60,000 miles. The amber marker shows the median: half of these complaints happened before that mileage.

View the numbers

Mileage	Complaints
0k to 20k miles	18
20k to 40k miles	13
40k to 60k miles	6
60k to 80k miles	7
80k to 100k miles	18
100k to 120k miles	12
120k to 140k miles	12
140k to 160k miles	4
160k to 180k miles	6
180k to 200k miles	2
200k+ miles	4

What the data shows

Of the 102 engine complaints that report mileage, the median is about 80,000 miles, and 36% were reported before 60,000 miles.

These complaints mention 5 crashes, 3 fires, 4 injuries.

What owners wrote

Tl* the contact owns a 2005 chevrolet cobalt. The contact stated that while driving 25 MPH, the vehicle stalled without warning and caused the contact to crash into another vehicle. The contact sustained bruising and contusions to the face and hands. A police report was filed of the incident. The vehicle was destroyed. The manufacturer was made aware of the failure. The failure and current mileage was 93,000.

Reported at 93,000 miles, January 2014 CrashInjury

Tl* the contact owns a 2005 chevrolet cobalt. While driving approximately 55 MPH, the vehicle stalled without warning. After restarting, the vehicle was able to resume normal function. The vehicle was taken to an independent mechanic for diagnostic testing, who diagnosed that the head gasket was blown and caused internal damage to the engine. As a result, the engine required replacement. The vehicle was not repaired. The manufacturer was notified of the issue. The approximate failure mileage was 100,000.

Reported at 100,000 miles, March 2015

Engine problems in other years

Engine problems across all Chevrolet models