overheating

Asked by Jan 09, 2010 at 12:04 AM about the 2006 Chevrolet Cobalt LS

Question type: Maintenance & Repair

my 2006 cobalt ls has been at a solid 196 degrees ever since i got it. For the past week I've been
noticing that the temperature is rising and falling with a difference of 20 degrees. For example. I'll be
driving(5th gear) and if my car has no heat on, no air conditioning on, it will teeter between 187-
199. When I'm stopped, it will rise steadily( the highest it's gone while driving is 207) until I start to
take off again. Then it will fall back down and teeter. When the heat is on, the temperature rises.
When the air conditioner is on, is will maintain between 199-205 I have had the thermostat replaced
already and the fan works( yesterday when the mechanic was looking at it he revved the engine
and it got up to 227 before the fan cut on. But today when I tried to rev the engine to see if the
temp would rise, but it didn't. it fell. What is this?

4 Answers

80

I'm having the exact same problem with my 2006 colbalt, the thermostat was replaced and that made it even worse, on the highway going about 3 exits my car reached 263 degrees today and the light came on and I had to pull over and let it cool down for a few minutes and drive through the towns so it didn't overheat on the hgihway. My dealer said it might be a head gasket but I don't see any antifreeze in the oil. I hope my engine doesn't seeze on me.

8 out of 8 people think this is helpful.
10

2009 Cobalt over heating, when you put the air on it stops over-heating.

1 out of 1 people think this is helpful.
20

My wife has a 09 cobalt she said it started shifting funny and she smelled a overheat smell. I noticed the reservoir expansion. I put a thermostat in it today drove it around to make shore it opened up. When I got home I took off the reservoir cap and it shot off and started spraying. My question is what else could make the car overheat?

1 out of 1 people think this is helpful.
20

My wife has a 09 cobalt she said it started shifting funny and she smelled a overheat smell. I noticed the reservoir expansion. I put a thermostat in it today drove it around to make shore it opened up. When I got home I took off the reservoir cap and it shot off and started spraying. My question is what else could make the car overheat?

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Cobalt

Looking for a Used Cobalt in your area?

CarGurus has 3,885 nationwide Cobalt listings starting at $1,698.

ZIP:

Search Chevrolet Cobalt Questions

Chevrolet Cobalt Experts

#1 lightGear
lightGear
Reputation 1,100
#2 dandyoun
dandyoun
Reputation 910
#3 munron
munron
Reputation 900
View All

Related Models For Sale

Used Honda Civic
499 Great Deals out of 87,505 listings starting at $1,499
Used Chevrolet Malibu
822 Great Deals out of 81,288 listings starting at $1,500
Used Ford Focus
515 Great Deals out of 56,000 listings starting at $800
Used Chevrolet Impala
512 Great Deals out of 29,027 listings starting at $1,100
Used Ford Mustang
374 Great Deals out of 46,779 listings starting at $1,500
Used Honda Accord
723 Great Deals out of 86,827 listings starting at $699
Used Toyota Corolla
670 Great Deals out of 71,614 listings starting at $600
Used Nissan Altima
852 Great Deals out of 78,680 listings starting at $1,677
Used Honda Civic Coupe
141 Great Deals out of 17,454 listings starting at $1,500
Used Toyota Camry
800 Great Deals out of 89,371 listings starting at $249
Used Dodge Charger
293 Great Deals out of 26,783 listings starting at $2,250
Used Chevrolet Cavalier
1,042 listings

Used Cars For Sale

2010 Chevrolet Cobalt LS For Sale
10 listings starting at $2,999
2009 Chevrolet Cobalt LS For Sale
105 listings starting at $1,998