heat/ac problem

Asked by Oct 19, 2015 at 11:35 AM about the 2007 Chevrolet Cobalt

Question type: Maintenance & Repair

So my car's ac had been acting weird, it was working on settings 1 and 4, but
settings 2 and three didn't change anything, it was still on the same strength
as the last number it was on. At that point it was just annoying not worth
fixing.. Then 4 days ago it decided that it wanted to be stuck on level 4 (high)
didn't matter if I turned the knob to off, it still stayed on full blast. I can could
change the temperature, but not the blower strength. By this time I'm getting
really peeved, it was making me go through gas like no other. Now yesterday,
it decided that it is going to choose when to turn off, and when to turn on. Still
the setting can be placed anywhere, but it will turn on high heat randomly for
a few minutes, and then just shut itself off..so this morning, when it was 31
degrees, it wasn't fun trying to defrost my car with such. Does anyone have
any ideas on what it is? I don't know if it's the fan speed sensor, the switch,
or the fan motor. Being that the fan works when it wants to, I don't think it's
the fan motor.

2 Answers

1,675

try yout blower motor resistor, that and the switch give you your speeds

170

sound like blower resistor is going bad

Your Answer

Chevrolet Cobalt Experts

  • #1
    lightGear
    Reputation
    1,210
  • #2
    munron
    Reputation
    1,180
  • #3
    dandyoun
    Reputation
    1,000
View All

Related Models For Sale

Used Chevrolet Malibu
84 Great Deals out of 1,809 listings starting at $2,495
Used Honda Civic
275 Great Deals out of 4,703 listings starting at $2,700
Used Ford Focus
82 Great Deals out of 2,487 listings starting at $990
Used Chevrolet Impala
141 Great Deals out of 1,103 listings starting at $1,995
Used Ford Mustang
991 listings starting at $3,900
Used Honda Accord
47 Great Deals out of 1,209 listings starting at $1,795
Used Toyota Corolla
143 Great Deals out of 3,485 listings starting at $2,495
Used Dodge Charger
60 Great Deals out of 742 listings starting at $2,950
Used Toyota Camry
48 Great Deals out of 2,120 listings starting at $2,750
Used Nissan Altima
70 Great Deals out of 1,256 listings starting at $999
Used Honda Civic Coupe
51 Great Deals out of 979 listings starting at $1,600

Used Cars For Sale

2010 Chevrolet Cobalt For Sale
6 Great Deals out of 96 listings starting at $1,000
2009 Chevrolet Cobalt For Sale
4 Great Deals out of 46 listings starting at $2,888
2007 Chevrolet Cobalt For Sale
28 listings starting at $2,250
2006 Chevrolet Cobalt For Sale
18 listings starting at $4,750

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.