Q: No air in vents or defrost

asked by on November 16, 2016

The blower motor does nothing unless im going over 40mph then heat defrost and ac all work doesn't seem to make a noise when it does work but i can't control how much or how little comes out

My car has 200000 miles.
My car has an automatic transmission.

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

Engine making whining noise
Hi there. The most common cause of this on your engine is the water pump. It can be a number of other things also. I typically remove the belt and run the engine to verify that the noise goes away....
Car is overheating - 2006 Chrysler 300
Hello. The cooling fans (https://www.yourmechanic.com/services/cooling-radiator-fan-motor-replacement) should come on before the engine gets too hot and overheats. The ECM should be scanned to see if it is signaling to turn on the cooling fan at the correct temperature and if the...
Squealing noise coming from hood while idling
The situation you are describing sounds like it is probably coming from the throwout bearing on the clutch. These bearing are considered "sealed" units, that don't have provisions for maintenance. Over time, the bearing will accumulate debris, and the lubricant...
Slight smell of gas or oil and poorer mpg fuel efficiency
This may be a result of a faulty oxygen sensor. As you may know the oxygen sensors which are part of your emissions system read exhaust gases to determine whether or not the appropriate amount of oxygen is present in...
What would cause acceleration without stepping on the gas while stopped?
It would be hard to pinpoint the exact cause. A couple of possibilities could be a vacuum leak. If the engine is sucking in too much air, it could raise the engine speed, possibly drastically if a ;large vacuum leak...
After taking car to car wash there was water in trunk and my back glass looked like it had condinsation in it
Hi there. When water leaks into the vehicle it is due to a window seal or door seal that is worn out. Since a car wash typically uses high pressure water to clean the vehicle, water can leak into the...

Related articles

A Buyer’s Guide to the 2012 Nissan Juke
The The 2012 Nissan Juke is part crossover, part sports car, and part radical looking car. It has five doors, folding rear seats, and a rear hatch for easy access to the cargo area. The seats fold flat offering extra...
The Best Used Cars to Buy If You Live in a Hilly Area
Do Do you live in terrain that is hilly? Do your city streets feature plenty of inclines and declines that can be nothing short of treacherous in miserable weather? If so, when it’s time to purchase a car you’re looking...
The Best Used Cars to Buy If You’re a Caterer
If If you are in the catering business, you need a reliable vehicle that will provide you with what you need to transport your food, linens, and other supplies. Generally speaking, you're better off buying gently used, because you will...