Q: AC still run when I turn the truck off and it blows sometimes and sometimes not

asked by on

A c still runs when I cut the truck off. It blows ice cold when it works but some days it won t blow at air the compressor is working. Maybe a short or blower speed control module it has auto climate control

My car has 120000 miles.
My car has an automatic transmission.

Hi there. It sounds like you have a bad blower resistor. You should replace this first and then see if the blower motor is still blowing intermittently. If it is, this would mean the blower motor is bad and there are dead spots in the motor. If you tap the motor when this happens, and the motor starts turning, then it is the motor that should be replaced. You may want to just replace the motor and resistor at the same time. If you’d like to have this done, a certified technician from YourMechanic, can come to your car’s location to perform these 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. AC still run when I turn the truck off and it blows sometimes and sometimes not

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: My car makes a loud screeching noise whenever I turn the ac on, it stops after a few seconds. Could this be a bad compressor?

Hi there: It is very possible that your AC compressor is the source of this type of noise. Much like other accessories driven by the engine’s belts, the AC compressor has several interior components and uses a sealed bearing to...

Q: Q: Transmission fluid is leaking

I would not recommend driving your truck under these conditions to prevent transmission damage. My first recommendation would be to have your transmission system inspected by an automotive service professional to locate the source of the leak. Possible leak sources...

Q: Q: Air conditioner not working.

The A/C and heat are two separate systems, so usually I would look at the blower and its circuit. But since you say the blower is working properly, I suspect a problem with the blend doors or possibly the automatic...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.