Skip the auto shop - Our mechanics make house calls

Q: AC wont blow on max

asked by on

A couple months ago my alternator blew out, before it blew the AC in my car worked fine. After replacing alternator the ac did not work at all, no cold air, no air flow from vents at all. I replaced the 2 fuses associated with the ac as listed in the owners manual diagram. The ac then worked but only when the car was cold, as soon as car would hit normal running temp the ac would stop running. Then i noticed it worked but only on settings 1-3, not on max. After a couple weeks it stopped getting cold at all, so i purchased a can of refrigerant, following instructions and video exactly, however the gauge never showed any reading at all. Cold air did not begin immediately, it started cooling a couple hours after adding it to the system. The ac worked again but only for about a week then began to not work on max setting and about 2 weeks after that stopped blowing cold air all together again. Do i possibly have a blower motor and\or resistor issue as well as a leak ? Or any idea? Thank yo
My car has an automatic transmission.

A: Based on the information you provided for y...

Based on the information you provided for your 2010 Dodge Avenger. It is likely that you have a leak in the air conditioning system. You may also have a resistor pack going bad, or the selector switch itself could be going bad. To have the problem verified, a certified technician from YourMechanic can come to your home or office to detect any leaks and make needed 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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Transmission

This may be a result of low transmission fluid or potentially a faulty transmission control module. A faulty transmission control module may cause a delay in acceleration or erratic shifting of gears. The transmission control module has various sensors such...

Q: What tips should be followed for operating the Heating and Air Conditioning?

In order to get the most out of your car’s Heating and Air Conditioning system, you’ll need to use it correctly. Here are the tips recommended by Ford: Use the front defrost or defrost and lower vents setting to...

Q: Vehicle overheats; leaks fluid

It sounds like you may have a bad radiator hose or some corrosion built up on the pipe that the hose connects to. I would recommend having your radiator flushed, thermostat replaced, and radiator hose and clamps replaced to prevent...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
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...