Q: its overheatng the second i start it when its been sitting for several days what can this be

asked by on

i can start my car and as soon as i do the temp goes as high as it possibly can when i havent been driving it and it has good clean coolent in it and i dont even think the engine is actually overheating

My car has 137000 miles.
My car has an automatic transmission.

Hello. If the temperature is rising right when you start it then it usually is not a overheating issue. Even with a bad overheating problem the engine usually takes a while to warm up. It sounds like you have a bad coolant temperature sensor, a wiring problem, or a gauge issue. Most of the time it is the sensor or the connection at the sensor that causes this. I typically fully test the sensor and the circuit first and if nothing is found I replace the instrument cluster. If you need this temperature reading problem fixed, consider YourMechanic, as a certified mechanic will come to your home or office to diagnose and repair this.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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. its overheatng the second i start it when its been sitting for several days what can this be

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: I just had my calipers switched now smoke is coming from tires rpm goes up and speedometer won't go over 40

Hi There, It sounds like you may have a caliper that is sticking causing excessive heat to be generated at the rotor as a result of the caliper trying to stop the rotor. A few different things can make the...

Q: Ac is vibrating when is turned on?

The vibration is coming from the blower motor. The blower motor is behind and below the glove box and sometimes it can suck in items that get caught in the blower fan and will cause vibrations and noise. You will...

Q: Humming sound on the left of the car

You should check the tires for uneven wear on the tread that will make a chop on the tread. If the tread is rough then it will make a hum noise and get louder as speed increases. Try to rotate...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...
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...