Why is the heat in my cobalt not working?

Asked by Jan 17, 2015 at 05:14 PM about the 2008 Chevrolet Cobalt LS

Question type: Maintenance & Repair

When you start the cobalt the heat wont be running, as in nothing blowing out the vents at
all. if you hit the dash or the blower motor the heat will come on instantly. I just wanted to
make sure that the motor is bad before i try replacing it. could it possibly be something
else?

5 Answers

65

low coolant level

65

less common would be the valve that regulates the hot water through the core or the ductwork not working properly

3,505

Definitely not fluid level if you get a response by hitting the dash, and it's not the blower motor if it works when you bang on it. There is probably a resistor in the duct work. They are prone to failure. That sounds like the more likely problem.

3,235

Blower motor does not come on - either short in the wiring or electrical sensor contact loose, or bad sensor! Do the easiest ck connection on sensor, the ck wires for loose connector or broken wire! I had a wire that was bent 90 degrees at the point where it was going into the contact! I moved wire 180 degree in opposite direction and it made a circuit !

3,235

Did my answer help? Please click helpful link on my comments Thanks

Your Answer

Add photo

Related Questions

  • 2005 Chevy Cobalt: Only have heat when I drive fast :-( 2 answers

    First I had a clicking noise everytime I turned the car on and was told that it was related to the heating/cooling vents. Next ...much later I lost the different speeds of heating fan (1-3) and could...

    2005 Chevrolet Cobalt LS

    -

    Maintenance & Repair

  • 2006 Chevy cobalt 5 answers

    I have a 06 Chevy cobalt and the HVAC fan speed switch isn't working. What are the steps I should take to get that working again.

    2006 Chevrolet Cobalt LT

    -

    Maintenance & Repair

  • Why does my car not start at times 4 answers

    I had my car fixed at a Chevy Dealership. My heat and was not working. I have heat and air now but since it was fixed My car has started to not crank at times.. When I get a boost, It usually star...

    Chevrolet Cobalt

    -

    Maintenance & Repair

  • i have a 2008 chevy cobalt. the ac works great but no heat 1 answer

    the ac works great nice and cold but when I switch it to heat it still blows cold. it is not switching to heat. please help it is getting cold and with Christmas around the corner I need a low cost fi...

    2008 Chevrolet Cobalt LS

    -

    Maintenance & Repair

  • My heater don't work in my 05 cobalt 5 answers

    My heat does not work in my 05 cobalt what could it be

    2005 Chevrolet Cobalt Base

    -

    General

Cobalt

Looking for a Used Cobalt in your area?

CarGurus has 4,961 nationwide Cobalt listings starting at $1,000.

ZIP:

Search Chevrolet Cobalt Questions

Chevrolet Cobalt Experts

#1 lightGear
lightGear
Reputation 1,080
#2 FordNut
FordNut
Reputation 1,040
#3 dandyoun
dandyoun
Reputation 900
View All

Related Models For Sale

Used Honda Civic
1,179 Great Deals out of 66,805 listings starting at $695
Used Chevrolet Malibu
1,158 Great Deals out of 80,222 listings starting at $2,495
Used Ford Focus
1,263 Great Deals out of 60,008 listings starting at $1,295
Used Ford Mustang
719 Great Deals out of 38,847 listings starting at $1,999
Used Chevrolet Impala
1,000 Great Deals out of 36,595 listings starting at $1,800
Used Toyota Corolla
1,401 Great Deals out of 69,171 listings starting at $988
Used Honda Accord
1,259 Great Deals out of 78,205 listings starting at $969
Used Nissan Altima
1,338 Great Deals out of 84,997 listings starting at $1,795
Used Honda Civic Coupe
335 Great Deals out of 17,242 listings starting at $1,000
Used Toyota Camry
1,525 Great Deals out of 101,098 listings starting at $700
Used Ford Fusion
1,275 Great Deals out of 73,508 listings starting at $1,295

Used Cars For Sale

2010 Chevrolet Cobalt LS For Sale
8 listings starting at $3,492
2009 Chevrolet Cobalt LS For Sale
3 Great Deals out of 123 listings starting at $1,300