Q: changed thermostat and radiator, temp gauge goes to hot when sitting still mostly, then goes back down to normal temp. Happens eve

asked by on

changed thermostat and radiator, temp gauge will jump up to hot and go back down to normal temp. Will even got to hot after only being started for like 2mins. Has plenty of coolant. Never did this until changed thermostat and radiator.

My car has 169000 miles.
My car has an automatic transmission.

Hi there. If you did not properly bleed the cooling system after completing these repairs, it’s more than likely that you have air bubbles inside the coolant system causing this problem. However, it could also be due to a bad electrical harness or connection to the thermostat or temp sensor on top of the radiator as well. It’s probably a good idea to have a professional mobile mechanic come to your location and complete a car is running hotter than normal inspection, so they can pinpoint the source of this issue and recommend the right repairs.

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. changed thermostat and radiator, temp gauge goes to hot when sitting still mostly, then goes back down to normal temp. Happens eve

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: Service stabilizer and traction control warning is on.

Your car is equipped with wheel speed sensors at each of the four wheels which monitor wheel speed while relaying this information constantly to the ABS and traction control system which are controlled by the car's ECU. When the ECU...

Q: Engine lost power, but then started after sitting for a while.

Hello, There are many things that could cause your vehicle to lose power as you describe, however what you are describing sounds like potentially a failing ignition coil. A failing ignition coil will often times produce a symptom as you...

Q: Everything turns on, but when I turn my key, the car won't turn on

Hi there. There are a few things that instantly come to mind that could be causing your starting issues. If you can activate all of your accessories but nothing happens when you turn the key forward, the cause is most...

Related articles

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...
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...