Q: Q: thermostat?

asked by on

the temperature gauge goes up to the middle (straight up) once the car heats, then once I turn the fan on for the heat it backs down to the left and stops halfway between 100 and 210. Is this normal or does the thermostat need to be replaced?

My car has 213000 miles.
My car has an automatic transmission.

It is not uncommon for the temperature gauge to drop when the heater is switched on, especially in colder situations (below 40 degrees f). The thermostat should be able to control the engine temperature in a way that you should be able to still get hot air into the cabin when the heater is engaged. I usually suggest that as long as the heat coming into the cabin is sufficient to keep you warm, I wouldn’t normally worry about the lower temperature on the gauge. If the air coming out of the vents isn’t getting warm enough though, I would try changing the thermostat. If this is something that still worries you, and you feel that you could use a hand in diagnosing or repairing it, I would suggest consulting a certified mechanic, like those available at YourMechanic.com.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Q: thermostat?

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: My car is cutting out it is an 02 impala and it seems like it is starving for gas. I have replaced the mass air flow sensor, plugs

You should first scan the computer for codes. Diagnose any codes received. The problem sounds like a clogged fuel filter. Replace it if it has not been replaced.Then it can be the camshaft or crankshaft sensors on this engine. ...

Q: Tire not aligned correctly.

The upper and lower ball joints on these vehicles are known to go bad. The tire leaning in could be either one or both. The only way to check is to have an inspection done by a mechanic, like the...

Q: My heater blows out warm air instead of hot air when my temperature dial is turned as hot as it can go.

Hello there, warm air coming from the vents on your 2001 Ford Taurus will be caused by a variety of issues. The heating system for your vehicle and the air conditioning system are completely separate and likely unrelated. A low...

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 are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...