Skip the auto shop - Our mechanics make house calls

Q: My fans stay on when I turn my car on and my temperature gauge stays on cool and will not move up even when the car is running

asked by on

My fans stay on when my vehicle is running and my temperature Gage will not move from cool even when car is running my temperature gauge will not move from cool

My car has 128000 miles.
My car has an automatic transmission.

A: Hey there. This can be caused by a number o...

Hey there. This can be caused by a number of things such as low coolant levels, a faulty thermostat, or a failing coolant fan switch.

As you may know, the coolant fan switch helps to maintain the proper coolant temperature by turning on and off at specific temperature thresholds. When this switch is not working properly, this can cause the fans to come on intermittently, all the time or sometimes not at all.

In your case, if they are on continuously, this may not allow the car to reach normal operating temperature as you have noticed. When this happens, you will notice a temperature spike and drop occasionally as the fan comes on and off. I would suggest having an expert from YourMechanic come to your home to diagnose your cooling system and pinpoint any 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: oil pressure on 80 what can be the problem?

The best scenario is if the oil pressure sending unit is simply bad. The sending unit can be tested and/or you can simply tee in a known good gauge to rule the sending unit in or out as the cause....

Q: What causes an ignition relay to go bad?

Hi, thanks for your question. If the relay is not making a good contact inside the relay socket, I suggest inspecting the old relays that came out and see if one or more of the pins look like they got...

Q: ABS lights flashing on dash, temperature gauge increased. Multiple lights flashing on the dash. I put my seat belt on and they went away

Hello, this could be a number of things depending on how the vehicle is running now. If you possibly ran through a puddle of water or your belt is worn, it could have slipped and caused the lights to flash...

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...
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...
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...