The temperature gauge utilizes a sensor, located near or in the thermostat housing , to send an electrical signal through the vehicle's internal computer corresponding to the specific coolant temperature, giving the gauge on your dashboard an accurate reading of the temperature.
Where is the temperature gauge sensor located?
Usually, the location of the coolant temperature sensor will be located directly behind the coolant pipe . In most modern cars and vehicles, this is present behind the right cylinder head that is located right underneath of the air intake pipe.
What sensor controls the temperature gauge?
To troubleshoot your car's temperature gauge, you need to know how it works. The temperature gauge reading starts out as a reference voltage that is sent to the coolant temperature sensor . This sensor is nothing more than a thermistor — a variable resistor that changes resistance with temperature changes.
How can you tell if your temperature gauge is bad?
- Temperature gauge reading very high and engine overheating. ...
- Temperature changing erratically. ...
- Coolant leaks around the thermostat housing or under the vehicle.
How do I know if my thermostat is stuck open?
A thermostat stuck in the open position constantly pushes coolant into the engine and causes a lower operating temperature . Your temperature gauge will show a needle that barely increases or remains at the lowest setting.
Can you drive with a bad temperature sensor?
It is possible to drive a vehicle with a faulty coolant temperature sensor as the management system defaults to a static reading. A vehicle's coolant sensor is a critical component used by the engine management system. It directly affects, cooling and fueling of the engine and therefore affects how the engine performs.
How much does it cost to fix a temperature gauge?
The average cost for an engine temperature sensor replacement is between $150 and $193 . Labor costs are between $82 and $105 and parts are between $66 and $88. Taxes and fees are not included in the estimate.
How do I fix my temperature gauge?
- Let the car's coolant cool for 15 to 20 minutes.
- Locate the thermostat.
- For better clearance, jack up the front end of the vehicle.
- Remove the radiator cap.
- Drain the radiator, according to instruction sin your car's repair manual.
- Remove the thermostat.
How do I check my temperature gauge?
- Unplug the temperature gauge from the sending unit. ...
- Turn the ignition key to the “On” position. ...
- Ground the temperature gauge wire to the engine. ...
- Check the temperature gauge inside the car. ...
- Turn the ignition key to the “Off” position.
- Check the fuses inside the car.
What is normal temp gauge?
Normal Temperature engine temperature gauge
Most experts agree that your engine should run between 195 degrees and 220 degrees . In ideal situations, your needle will maintain a posture right in the middle of your gauge.
How can I tell if my water pump is bad?
- Overheating. A dead or dying water pump cannot circulate coolant through your vehicle's engine and, as such, the engine will overheat. ...
- Coolant Leaks. Coolant leaks from the water pump are common and a clear sign that it's time to replace the pump. ...
- Corroded Water Pump. ...
- Whining Noises.
Can you unstick a car thermostat?
Start your engine and let it idle for 10-20 minutes.
From a cold start, your vehicle's thermostat will stay closed and you won't notice any coolant flowing into your radiator. Leave the vehicle running for about 10-20 minutes so it can reach its optimal running temperature.
Why is my temperature gauge stuck on cold?
Reasons the Temperature Gauge Reads Cold
Another reason the temperature gauge could read cold is if the thermostat in the vehicle stays open . With the thermostat stuck open, the engine can be overcooled, causing a low temperature reading. If this is the case, the thermostat may need to be replaced.
Can you drive a car with the thermostat stuck open?
If you are driving your vehicle and the thermostat is stuck in the open position, it's definitely going to cause some problems for you . When your thermostat is unable to properly close when it needs to, the flow of coolant will be unrestricted throughout your engine.
What does a temperature sensor do in a car?
A coolant temperature sensor (CTS) (also known as an ECT sensor or ECTS (engine coolant temperature sensor) is used to measure the temperature of the coolant/antifreeze mix in the cooling system , giving an indication of how much heat the engine is giving off.
