Skip the auto shop - Our mechanics make house calls

Q: Car is running hotter than normal.

asked by on

After driving the car for about 15 minutes the temperature gauge will rise to about 3/4 of the way then it will cool down to a little lower than normal operating temperature. It will stabilize for a second at normal then the car will begin overheating again. Sometimes it actually makes it to extremely hot, but most the trip it will only overheat a little bit. When i turn the car off after the trip the fans remain on for a few minutes(this has never happened the whole 3 yrs I've had the car).

My car has 102000 miles.
My car has an automatic transmission.

Hi there. Check the coolant level to the radiator. If the coolant is low, then fill it up to the top and recheck the overheating conditions. If the engine continues to overheat or if the the radiator is full of coolant and overheats, then feel the upper radiator hose at operating temperature. The hose should be hot to the touch. If its not that hot, then the thermostat is not opening all the way causing a restriction in the system. I recommend replacing the thermostat if its not opening up all the way. If you need further assistance with your engine overheating, then seek out a professional, such as one from Your Mechanic, to help you.

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!
  1. Home
  2. Questions
  3. Car is running hotter than normal.

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 2008 Highlander started to overheat today. There was little coolant so I added some 50/50 and suspected the cooling fan is not

If you disconnect sensors while the engine is running, or turn on the key after disconnecting something, you will likely get a Check Engine Light. The Electronic Control Unit sees the disconnection as a faulty sensor. It then stores a...

Q: The engine is running hot.

The seal or gasket is not sealed properly on the thermostat housing. A loose bolt, torn gasket, or wet silicone will cause the thermostat housing to leak. If you need further assistance with a coolant leak, then seek out a...

Q: Banging/ rattling noise coming from the front suspension?

Hi there. The sound on the video is an indicator of worn out control arm bushing. Without being there to inspect all components of the steering and suspension, it's hard to say for certain what is the precise source of...

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...
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...