Skip the auto shop - Our mechanics make house calls

Q: My temperature gauge is going from cold to hot in a half mile. The hose going to the thermastat is HOT. Does it sound like the the

asked by on

My temperature gauge is going from cold to hot within a half mile The hose leading to the thermastat is HOT. But no antifreeze blew out. But i shut it off quick do u think its the thermastat?

My car has 150000 miles.
My car has an automatic transmission.

If the thermostat is open you will get the hot bottom and top hoses. Check to make sure the fan clutch is locking up and giving enough air flow across the radiator. If you have electric fan style, then is it coming on. If you are full of coolant and the fans work, then your thermostat is the most common problem or the water pump is not pumping from worn off pump blades if the coolant is rusted and corroded. Have a mechanic come and diagnose the overheating problem for you if you still need help.

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
  1. Home
  2. Questions
  3. My temperature gauge is going from cold to hot in a half mile. The hose going to the thermastat is HOT. Does it sound like the the

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: Brakes are squeaking and brake light is coming on

This may suggest that your brake pads are worn and due to be replaced or that you have a leak somewhere in your brake hydraulic system. The brake reservoir has a sensor inside that detects when the brake fluid reaches...

Q: Key will not turn off engine in ignition 1997 Oldsmobile Achivea

Hello there. There are a few reasons your 1997 Oldsmobile Achieva is not turning off. The most common causes, would be a failed ignition switch, key cylinder, or a wiring fault. You may be able to remedy the issue by...

Q: what is optimal operating temperature supposed to be? is 215 too high?

Hey there. 180 is normal for your car. Although 215 shouldn't hurt anything if it only stays there for a minute or so and cools back down, it really should not be getting this hot. There are different thermostats available...

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...
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...