Skip the auto shop - Our mechanics make house calls

Q: Car hums when running hot

asked by on

When my car runs hot, there's a loud hum/whine.

Hi there. Vehicles can make all sorts of noises and whines, for many reasons. Because vehicles can run hot, and make noises for a variety of reasons, many times it is best to have a professional technician, such as one from YourMechanic, inspect the vehicle’s noise in order to properly diagnose the problem.

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: A/C blows cold cold when driving but hot when idle an drains battery

It sounds like you may have a damaged AC compressor clutch that may be causing a drag on the alternator, resulting in the dimming of the lights due to the alternator not properly charging the battery. As you may know...

Q: hard pedal, no brake action or fluid with engine on or off.

If the brake system was working before and now the brake pedal is hard and the front calipers are not moving, then the brake booster has failed (which is the hissing sound that you are hearing) and there seems to...

Q: Service stabilitrak and three traction lights are on

There is a possibility that the lights may be related to the code, but the system will have to be scanned and the trouble codes pulled to be sure. You may have a couple different things going on with the...

Related articles

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.