Skip the auto shop - Our mechanics make house calls

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?

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
  • Home
  • Questions
  • 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: Ignition, but not speedometer 2006 Dodge Charger

Hi there - if I understand your issue correctly, the speedometer is the failing component. Check fuses for the instrument cluster for blown fuses first, but most likely, the speedometer sensor (aka output speed sensor) on your transmission, or its...

Q: Should the right front axle shaft pop out with the CV shaft still in place on an 02 suburban 1500?

Hi there. There could be either the bolts are loose from the CV Shaft to the axle shaft, or the C-lock inside the front differential has broken allowing the axle shaft to move in and out of the axle housing....

Q: AC problem - 2004 Jeep Liberty

The A/C system on this vehicle may have lost some of the refrigerant charge and will not kick on the compressor if it is low. When the belt broke pieces may have damaged a part of the A/C system. You...

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...
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...
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.