Skip the auto shop - Our mechanics make house calls

Q: Heater doesn’t really work

asked by on

I have a 2006 Chevrolet Equinox that doesn’t blow hot air out of the vents when it is supposed to. This is a huge problem on really cold nights. The car has around 144,000 miles on it and it is pretty much always driven on the highway. I want to get this problem fixed but I would really prefer if it didn’t get stuck in a shop for weeks, I need this car for work. What can I do?

If your car is not overheating and has the proper amount of antifreeze in the system, then your problem is most likely caused by a problem with the temperature blend door. The blend door failure can cause your temperature control to either be stuck on cold or hot, either of which is a huge issue depending on where you live. When you change the temperature setting in your car, this door basically diverts the airflow to run across the heater core for hot air, or the evaporator core for cold air. In older cars they were controlled by cables, however, most new cars use electronics to control the door. If the electronic control malfunctions you may hear a clicking noise as the door attempts to move to a different position. GM is very aware of this issue and your vehicle may be covered by one or more Technical Service Bulletins (TSB). You can find out what recalls your vehicle is eligible for by taking your VIN number into a local GM dealership where they can provide you with a list of defects related to your vehicle. If the warranty period for your vehicle is expired you can also use a repair service such as Your Mechanic to get an estimate on the cost to repair this issue.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Heater doesn’t really work

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: The temperature gauge is low and the engine does not get enough power

The issues you are experiencing can be caused by a few different things. One common cause is an issue with the engine temperature sensor. If the sensor goes bad it may not give the computer an accurate signal, which may...

Q: excessive fuel consumption I put genuine spark plug and wire plug set it was 125 lm now 145 km per 20 liters?what is problem how c

Hello. It is difficult to get much better fuel economy then what you are currently getting. The only way is by driving the car easy and maintaining it. Using synthetic oil, a high flow air filter, making sure that the...

Q: How do I turn on the rear window defogger?

The rear window defogger helps you maintain maximum visibility out of your rear window. To turn on the rear window defogger, press the REAR button on the climate controls. The defogger will stay on for 10 minutes, or until you...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.