Skip the auto shop - Our mechanics make house calls

Q: Fan came on & temperature gauge raised to hot

asked by on

The fan came on in my SUV and the temperature gauge skyrocketed to Hot! I revved the engine and that seemed to calm it down. My vehicle has 77,000 miles and I recently had general maintenance. Can you direct me to what is the problem so I will know what to say to the mechanic and sound intelligent. I’m 80 years old and that sometimes causes some people to think I won’t notice extra, unneeded work. Thank you.

A: When you say you had general maintenance, d...

When you say you had general maintenance, did you get a coolant service? If so, then your engine coolant may have had an air pocket from the coolant change, and then the pocket caused the high temperature spike which then went down after you revved the engine up and cleared the air pocket. Have a mechanic check the coolant level to make sure you are not low on coolant and have no leaks.

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: Car overheating; thermostat

Hello! A common reason for most vehicles to overheat is a faulty thermostat. However, on 350Z's, the factory fans are known to fail prematurely and cause an overheating scenario. I suggest checking the performance of the cooling fans and thermostat....

Q: Type of engine oil

Thanks for writing in about your 2015 Hyundai Veloster. Yes, this should always be used when stated by the manufacturer. Turbocharged engines create a lot of power which generates heat and stress. Synthetic oil has the properties in it to...

Q: SUV wouldn't start and brake pedal felt too tight

If you are having intermittent problems starting the vehicle, when you do not push down the brake pedal far enough, then I would suggest pushing the brakes down until the brake lights come on and then this should enable the...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...