Q: Heat and AC fan not working on 2007 chevy Cobalt.

asked by on

The fan for the heat and A/C for my 2007 Chevrolet Cobalt is not engaging. The vents will blow air when I am driving 30+ MPH but when I switch on the fan I get nothing. I have replaced all the fuses and relays. I have replaced the blower motor resistor and wiring harness. I have replaced the climate control switch. I am at a loss. Not sure what the issue is or how to fix it but need it done ASAP.

My car has 151732 miles.
My car has an automatic transmission.

You should first check the fuse labeled BCM 3 in the engine fuse box and then if it is good then check blower motor for power when system is on? If blower has power but does not turn then try tapping on motor and if it starts working then replace blower motor and check connector.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Heat and AC fan not working on 2007 chevy Cobalt.

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Fuel rail leaking

Hello. I have seen this many times on this engine. The most common fuel leak on the fuel rail is the fuel injector O-rings. These O-rings that go between the rail and the injectors tend to rot out over time...

Q: 2007 Buick LaCrosse, startup noises

There are a number of things that could make an engine noisy when starting up. Depending on the specific type of sound you are referring to, this will determine how to properly diagnose. If there is a bit of a...

Q: Can I buy parts that are to be installed , or do you have to buy them. as in replacing an alternator.

If you provide the parts for a repair the parts warranty you got when you purchased the part is still good. You will not be covered for labor warranty for parts replacement when you provide the parts.

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...