Skip the auto shop - Our mechanics make house calls

Q: AC and defrost sticking

asked by on

I had the oxygen sensor replaced. The AC and defrost work, but it's like they are sticking when engaging.

A: Hello. I am not sure what you mean by the A...

Hello. I am not sure what you mean by the AC and defrost seem to be sticking when engaging. If the direction of the vents is not changing then one of the door actuators may be failing. If the air temperature is not changing then it may also be an actuator or is may be the controls. A mechanic would typically inspect the actuators to see if they are moving when the controls are changed. If they are sticking then they may be failing. If you plan on having this done, consider YourMechanic, as a certified mechanic will come to your home or office to inspect and repair your AC system.

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!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Is it dangerous to drive a car when you smell gas?

Hi there. When you opened the hood to add engine oil to the engine and you smelt fuel vapors, there could be an issue with the fuel injectors. Most likely the fuel injector o-rings have split or cracked. When a...

Q: How defroster works when there is no ac

The normal operation of the defroster is for the outside air is drawn into the a/c heater inlet with the system in the defrost position. When the system is in the defrost position the a/c compressor comes on and the...

Q: What tips should I follow with the air conditioner?

Your car’s air conditioner and heater are largely self-monitoring, but there are a few things that you should know. If the automatic climate control system is operating and it’s very warm, you may notice fog/mist coming from the...

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 to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...