Q: My temp gauge reads low, but I replaced the thermostat.

asked by on

After the first hose broke, I didnt think about the after affects. I looked some solutions, but none worked for me. My thermostat was stuck at cold after the first hose broke, but still is stuck even after I put a new one in.

In order to properly test the cooling system you’ll need to test the temperature at the temperature sending unit with a laser temperature tester or something equivalent. You’ll also need a scanner to look at the reading to the ECM for comparison. If you are getting the actual engine temperature around 185 degrees Fahrenheit or close to it, compare it to the computer reading and it should be at or near this reading. If it is reading lower than 5 degrees less then I would replace the sending unit. If you’d like to get this fixed, consider YourMechanic, as a certified technician can assist you with this check and help you make the necessary repair.

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. My temp gauge reads low, but I replaced the 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: 22-gallon tank will only fill to 10 gallons

The fuel level sensor may be experiencing a malfunction especially if there have not been any performance concerns. Unfortunately, it is inside the fuel tank and must be removed to examine the contacts. This is common among many year models....

Q: Q: What type of engine oil should I use?

Whether you’re topping off the engine, changing your own oil or working with a new service station, it’s important to know what type of oil your engine is designed to use. The wrong oil weight can reduce fuel economy and...

Q: My car is not warming up to operating temperature

Air pockets in the cooling system can cause all kinds of weird behavior. So first of all, be sure the cooling system is completely full by running the car in park with the heater on max and the radiator cap...

Related articles

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...
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...