Skip the auto shop - Our mechanics make house calls

Q: AC not working

asked by on

Hi. I took my car to the dealer to have an oil change. My AC was working fine and gave cold air. After picking up my car, the speed (amount) of cold air the AC is giving is the same amount when I have it at a low speed as in in high speed. It doesn't matter what speed I have the knob it continues to give out the same speed with is low. Is it possible that the mechanic that changed the oil turned anything low to affect the AC?

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

Hi, thanks for your question. I’d be happy to help. The AC and oil system on a Nissan Armada are not linked in any way mechanically. So, the likelihood of the dealer mechanic doing something to cause this issue is small. However, in some instances, this problem can be caused by a damaged resistor that powers the AC system. If you’d like help, consider having one of our local ASE certified mechanics complete an AC is not working correctly inspection for you by coming directly to your home or office.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: Car dies after a few minutes

There is a high possibility that your fuel injection unit "CFI" is malfunctioning. That is a common problem on your vehicle. If you would like help with this issue, consider YourMechanic, as a certified technician will be able to visit...

Q: I have a random misfire at idle. I have tried everything I know. Plugs coils smoked the intake for leaks tested the EGR

Hi there. A random misfire is typically caused by a sensor or electrical connector that is faulty or the wiring harness is damaged; leading to the random supply of electricity. On a Sentra and other four-cylinder Nissan engines, it's common...

Q: A/C doesn't cool immediately

Hello. It sounds like the fan motor or fan motor resistor might be faulty. This could explain why the fan doesn’t start immediately. The A/C compressor is probably to blame for the air not reaching cool temperatures as fast as...

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...
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 Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...