The coolant temperature sensor, also known as the coolant temperature switch, is an engine management system sensor used to monitor engine coolant temperature. Most coolant temperature sensors use electrical resistance to measure the temperature of the coolant.
Also, what are the symptoms of a bad temperature sensor?
Symptoms of a bad or failing coolant temperature switch (sensor)
- Poor fuel consumption. One of the first symptoms associated with a coolant temperature sensor problem is poor fuel economy.
- Black smoke from the engine. Another symptom of a possible problem with the coolant temperature sensor is black smoke from the vehicle’s exhaust.
- Engine overheats.
- Check engine light comes on.
Where is the engine temperature sensor?
The engine coolant temperature sensor is located in the coolant pipe, under the air intake pipe and behind the right cylinder head and is integrated with the ECT sensor. The engine coolant temperature sensor is located on the back of the right cylinder head and is integrated with the ECT sensor.
What you should also know: Can you drive a car with a faulty coolant temperature sensor?
Anyone with specific knowledge weighs. Normally the coolant temperature sensor is used to indicate fuel adjustments for cold start enrichment and fan control. Since the thermostat and water pump are mechanical, the engine still cools. You can drive without any problems until the sensor is replaced.
What does a faulty temperature sensor do?
The coolant temperature sensor signal tells the engine‘s computer when to add additional fuel during a cold start . A faulty sensor can confuse the computer and prevent it from providing enough fuel. As a result, the engine may hesitate or stall.
How many coolant temperature sensors are there in a car?
The coolant temperature sensor is usually located near the thermostat housing in the intake manifold. On some vehicles, the coolant sensor may be located in the cylinder head, or there may be two coolant sensors (one for each cylinder bank in a V6 or V8 engine), or one for the PCM and a second for the cooling fan.
Where is the cooling fan sensor?
The cooling fan relay is usually located either in the fuse and relay center in the engine compartment or is mounted on the electric fan assembly behind the radiator.
A faulty coolant temperature sensor will cause a misfire ?
Engine Overheating. The coolant temperature sensor can also fail to the point where it continuously sends a hot signal. This can cause the computer to incorrectly compensate for a lean signal, which can lead to overheating and even misfire or engine ping.
Can a temperature sensor affect engine starting?
If The sensor reads too high a temperature compared to the ambient air temperature sensor when first started, then the computer would see this as a problem and turn on the check engine light, go into fault management mode and use a known good reading. The sensor will not cause a start stop.
Does the coolant temperature sensor control the fan?
The sensor measures the temperature given off by the thermostat and/or the coolant itself. The temperature is then sent to the onboard control system. As the control system receives the temperature from the CTS, it can cause the cooling fan to either turn off or turn on.
What happens if I unplug the coolant temperature sensor?
Plugged in , the sensor sends in Signal for an extremely cold setting, resulting in a very rich mixture. Disconnecting the sensor may give you a default setting and fuel mixture that is much better for engine performance.
How do I know if my cooling fan relay is bad?
Symptoms of a bad or failed one Cooling fan relay
- Engine is overheating. One of the first symptoms commonly associated with a bad or failed radiator fan relay is an engine running hot or overheating.
- Radiator fans not working. Non-working fans are another common symptom of a potential fan relay problem.
- Cooling fans stay on all the time.
How do you replace a temperature sensor?
How to replace a coolant temperature sensor
- A video of this work is at the end of this guide.
- Release the cooling system pressure.
- Search the coolant sensor.
- Remove the electrical connector.
- Remove the coolant sensor.
- Install the new coolant temperature sensor.
- Cooling system top up.
What is the fuel temperature sensor?
Fuel temperature sensor products. Your vehicle’s fuel temperature sensor is basically the component , which tells your Engine Control Unit (ECU) to adjust the amount of fuel injected. You see, when your fuel is warm, it’s less dense and burns faster.
What do you do when the coolant temperature light comes on?
Drag auto go somewhere when the light comes on. Stop and turn off the engine as soon as possible. Wait at least 30 minutes for the engine to cool down. Wear a thick glove or wrap your hand in a thick towel or rag and remove the radiator cap to check the coolant level.
What is the normal coolant temperature for a car?
The acceptable range for an engine to operate is between 195 degrees and 220 degrees Fahrenheit. This assumes a person is using a 50/50 mix of antifreeze and water.
What is a CHT sensor?
A basic description of the sensor is that it is is a thermistor device whose resistance changes with temperature. “In applications that do not use an engine coolant temperature (ECT) sensor, the CHT sensor is used to determine the engine coolant temperature.
How does the temperature sensor work?
Temperature sensor is a device to Measuring temperature through an electrical signal requires a thermocouple or RTD (Resistance Temperature Detectors). When the voltage difference is amplified, the analog signal is generated by the device and is directly proportional to the temperature.
How much does it cost to replace an engine coolant temperature sensor?
The average cost to replace an engine coolant temperature sensor is between $148 and $193 Labor costs are estimated at $82 to $105 Parts cost between $66 and $88. The estimate does not include taxes and fees When would you like to drop off your car?