Q: Ac not blowing out of vents turns on but doesn't come out

asked by on July 22, 2016

I don't hear anything when I turn it on or smell anything . I can hear it click on when I press the power button but nothing comes out no matter the temperature or level the ac or heater is on. Unless I get on the hwy if I turn it on it'll blow very cold air for about 45 sec and stop. Ive tried doing that repeatedly and it does the same thing over and over blows very cold and turns off . Any other time I can have the ac on and nothing blows out of the vents at all
My car has an automatic transmission.

Hi! It is sounding like you may have a bad blower motor control module. It is located under the dash next to the blower motor. A technician can test it with a volt meter to verify its proper operation. I’d also suggest inspecting/replacing the cabin air filter while you’re down there, as it can restrict air flow out of the vents.

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Service Engine Light is on
This indicator is part of the onboard diagnostics (OBD-II) system, and in all cases, it indicates a problem with your emissions system. Basically, it is an emissions monitoring system. A Check Engine indictor will stay solid or blink. If the...
Car idling low at stop
If you have a Check Engine Light (https://www.yourmechanic.com/services/check-engine-light-is-on-inspection), I would start there. Any codes that are found will aid in the diagnosis of your issue. It is possible that you could have an issue with your idle air control valve....
Car stuttering when starting, dying while driving
A faulty high pressure fuel pump (https://www.yourmechanic.com/services/fuel-pump-replacement) is just one of many potential causes. It could be anything from that to a plugged catalytic converter (https://www.yourmechanic.com/services/catalytic-converter-replacement). The first step is to retrieve the diagnostic trouble codes (DTCs) (https://www.yourmechanic.com/article/what-is-the-on-board-diagnostics-obd-system) which serve...
Do I need to change spark plugs if over time limit but well under miles limit?
Hi there. As long as the vehicle is performing normally and no Check Engine Lights are on, you should be fine until reaching the 105,000 mile mark. When it is time to change them, you may want to consider having...
Engine code P0130 - Oxygen sensor
The code (https://www.yourmechanic.com/article/p0130-obd-ii-trouble-code-02-sensor-circuit-malfunction-bank-i-sensor-1-by-paul-lancette) is for the oxygen sensor not putting out enough voltage, causing the vehicle to run rich all the time since the computer thinks it is running lean until the computer reaches its rich limit. Check the oxygen...
I think my daughters AWD is not working on her 2005 BMW X5. How much does something like that cost to fix?
Hi there: If your daughter's BMW X5 has an illuminated ABS, Trac Control or AWD light on the dashboard, it's likely that a problem exists with the AWD that is causing the traction issues on your slanted and icy driveway....
No heat, antifreeze leak, overheating engine
Hi...stop leak products should never be introduced into a car engine's cooling system simply because such aftermarket products are not a factory authorized or factory sanctioned repair technique. Some factory service manuals are indeed emphatic on this issue. A stop...
My 05 base model Kia Rio ran out of gas and wont start.
Hi there. It does sound like the fuel pump may have experienced a failure from running out of gas; it does happen. You mentioned that you removed the pump and inspected it; what test was performed? A fuel pressure test...
Need frame replacement due to rust and corrosion - Toyota
Hello - this task is best handled by a collision repair estimator at a reputable paint and body shop. S/he is trained to evaluate visible and not-so-visible damage, and the costs to repair. Contact a reputable paint and body shop...

Related articles

The Best Used Cars to Buy If You Love Road Trips
If If you love to travel, comfort is very important in a vehicle. You want a nice, quiet ride, comfortable seating, and enough room. We have evaluated several used vehicles, and narrowed our favorite road trip vehicles down to the...
How to Get Chevrolet Dealership Certified
Chevrolet car dealerships offer automotive technician jobs to mechanics who are certified through the many training programs available.
How to Replace a Car Air Conditioning (AC) Compressor
If the AC compressor fails, it can cause the air conditioning system not to work. This article covers how to locate, remove, and install a compressor.