Skip the auto shop - Our mechanics make house calls

Q: Car stalls when a.c. fan is turned on

asked by on

When the fan is turned on, even with out the a.c. on the car stalls. Any help on what could be wrong will be greatly appreciated!

My car has 104000 miles.
My car has an automatic transmission.

A: If the fan is drawing too many amps and the...

If the fan is drawing too many amps and the alternator is not charging enough, this can cause a large sudden drain on the electrical system and cause the stall. Have the fan motor and charging system checked to make sure the fan is not drawing more than 30 amps, and the alternator is putting out more than 30 amps. Also make sure the battery cables are removed and cleaned. Corroded battery terminals can cause the conditions also. If you would like to have this checked, a certified professional from YourMechanic can come to your car's location to pinpoint the cause of the stalling issue and perform any required 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: Navigation unit drains battery

Hello there, thank you for asking about your 2006 BMW 760Li. The navigation module is fuse F76 in the luggage compartment. It is a 10 amp fuse. Unfortunately, this fuse looks like it powers other components as well, including the...

Q: Overheating, leaking, and starting issue

I think you meant to say that the engine's cooling system is leaking, rather than the AC system. Without testing the cooling system, there is no way to tell where the leaks are. The hard starting may not be related...

Q: Ignition switch won't turn

The first thing to try is to try and rock the steering wheel while turning the key to see if the steering is binding it. If this does not work then try another key if you have it. If none...

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 Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.