Q: When turning the temp. selector from cold all the way to hot, does it click?

asked by on

When the temp. selector is all the way left (hot) it just makes a loud clicking sound. Start turning it back to cold it quits. The fan can be off and the air conditioning. switch ca n be off, and it still clicks temp switch is at hot. What could this be and would this be expensive to fix?someone told me it could be a motor

My car has 123000 miles.
My car has an automatic transmission.

Hello. The problem sounds like a blend door actuator motor. It controls where the fresh air is drawn in from when the switch is moved. There are actually two different areas that can supply the air, depending on whether you want hot or cold. When you move the switch to the middle for warm air, the air is drawn from both sources at the same time, and therefore gives you air that isn’t fully hot or fully cold.

Anyway, when the blend door actuator fails, it doesn’t have the ability to move the door to the correct position. It will see a command to be in one position and keeps trying until it is in the correct position. When it can’t move, it just keeps trying, hence the clicking until you switch it back to the other position. If you would like to verify the problem, a qualified professional from YourMechanic can diagnose the clicking sound and assist with any needed repairs.

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. When turning the temp. selector from cold all the way to hot, does it click?

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: vibration in steering wheel when break

Hello, thank you for writing in. The steering, suspension, and brakes are all closely related. The first place you often feel issues is in the steering wheel. The best option is to give all three systems a full inspection. Start...

Q: After I start my car it makes a weird noise.

We need to determine what type of noise the car is making, and in what area of the engine or transmission the noise is coming from. From my experiences most noises come from the belt or pulleys on cars and...

Q: Temperature gauge goes up when driving and down when not

Hello. This suggests you may have a faulty coolant fan relay switch. This is a relay that triggers the cooling fans to come on at predetermined temperatures. When this is not working properly, this can cause the fans to come...

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...