Q: Heat and air controls broken
The heater and air conditioning controls do not work right. All come on as defrost.
Recommended Services
| AC is not working Inspection | $111.46 - $131.46 | Get a Quote |
Hi. This can be caused by two things. There are actuators or motors under the dash that operate doors in the vent system. These door direct air to the different vent locations. The actuators can be ran by vacuums or they can be electronic. If they are vacuum operated, the vacuum line might have come off causing a leak. The default setting in this case is the defrost, so that is where it blows from. If the actuator is electronic and fails, the same will happen. Depending on the diagnosis, dash removal might be necessary to access the actuators. A qualified mechanic, such as one from YourMechanic, can inspect the AC for proper operation and replace any failing components.
The statements expressed above are only for informational purposes and should be independently verified. Please see our
terms of service
for more details
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
What others are asking
What does the Service Transmission message mean?
The Service Transmission message can appear on the driver information center (DIC). When the DIC displays this alert, then the transmission is not operating properly and should be serviced as soon as possible.
How do I use the child-protector lock?
The child-protector lock is a key safety feature that helps keep children secure in the backseat. When the child-protector lock is engaged, the rear doors cannot be opened from the inside, even if the standard lock is unlocked. This makes...
drop into gear engine revs out of control
This is often times a sign of a vacuum leak. There is a plate that is supposed to be closed when the engine is cold to preheat the air going to the throttle body. As the engine warms up this...
How much would this cost to repair? 2001 Chevrolet Impala
Hi - first task would be to check the transmission fluid level. Also, is the fluid red, or closer to black? If dark in color, it may be a good idea for change the transmission fluid and filter. Check also...
Car won't stay on for less than 5 seconds and makes a knocking sound.
Hi there. The symptoms that you have presented sounds as if the fuel pump has stopped working. When the fuel pump stops working, the engine will start up and run rough and stall out. While the engine is running, due...
How long does it take to put on an ac compressor in a Hyuandai sonota 03 automatic
According to service prodedures, it calls for about 3.9 hours to complete this job which includes replacing the a/c compressor as well as the refridgerant in the system.
The D light on the dashboard keeps blinking after the gear shift from reverse to drive
Hi There, The blinking D light indicates that there is a problem with the transmission. This may be something mechanical such as a shift solenoid or possibly some electrical such as a transmission speed sensor (https://www.yourmechanic.com/services/transmission-speed-sensor-replacement). This may also indicate...
Volvo xc70 locked up exiting hwy, will reverse but no fwd motion. Idles smooth, rolled fine with front end lifted to tow.
Hi Hailey. Thanks for contacting us today. What you are describing is quite alarming. Anytime the front tires lock up while driving, that's usually an indication of a fairly serious driveline failure. The damaged components can range anywhere from an...
Puzzling Electrical Issue.
Any time you add accessories you take the risk of overloading the electrical system at idle or lower engine speeds. The only recommendations I suggest is that you disconnect the last lights that started the problems and see if the...
Related articles
What Causes the AC System to Leak?
Your car’s air conditioner is responsible for keeping the interior cool and comfortable on hot days. However, in order to do that,...
How Does a Car's Air Conditioning Work?
All All across North America, a climate change occurs every year. The cooler spring temperatures give way to warmer weather. In some areas this lasts for two months, and in others it lasts six months or longer. It’s called summer....
Symptoms of a Bad or Failing AC Belt
If your car squeals when you turn on the AC, has cracks in the AC belt, or is unable to defrost the windshield, you may need to replace the AC belt.
Browse other content
Cities
Estimates