Location of coolant temperature sensor
- Apply thread sealer P/N 12346004 or equivalent to the engine coolant temperature (ECT) sensor threads.
- Install the engine coolant temperature (ECT) sensor into the left cylinder head. Torque the sensor to 15 ft-lb (20 Nm).
- Connect the engine coolant temperature (ECT) sensor connector.
- Refill the engine with coolant.
Where do I find the coolant temperature sensor?
Part 2 of 3: Remove and replace the coolant temperature sensor
- Make sure vehicle is on a level working area. ...
- Locate the coolant temperature sensor. The first item that needs to be completed after you compiled all of your tools and assets is to locate the coolant temperature ...
- Jack the front end for clearance. ...
- Remove radiator cap and overflow cap. ...
- Drain the radiator. ...
- Replace drain plug. ...
Where is my coolant temp sensor located?
- Drain the cooling system to a level below the engine cooling temperature (ECT) sensor.
- Disconnect the ECT sensor electrical connector (5) .
- Remove the ECT sensor.
Where is the coolant temp. sensor located on?
Part 2 of 3: Remove and replace the coolant temperature sensor
- Coolant collection pan
- Flat head screwdriver
- Funnel
- Jack
- Jack stands
- New coolant
- Pliers
- Replacement coolant temperature sensor
- Safety equipment including safety glasses and gloves
- Socket wrench set
Where is the temperature sensor located?
- Connect the OBD2 scanner to your car. ...
- Check the live data and check the temperature of the IAT sensor. ...
- If the readings are not realistic, there could be a problem with your IAT sensor or the wirings to it. ...
- Ohm-measure the Intake temperature sensor and make sure they are the same as your repair manual suggests. ...
Where is a coolant temperature sensor located?
In most cars, the primary ECT sensor (ECT sensor 1) is installed near the thermostat in the cylinder head or block or on the thermostat housing. A second coolant temperature sensor could be installed in another part of the engine, or in the radiator.
What are the symptoms of a faulty temperature sensor?
Following are the significant symptoms of a bad coolant temp sensor:Check Engine Light.Engine Overheating.Poor Fuel Economy.Poor Engine Performance.Broken Water Pump.Control of Cooling Fan.Black Smoke From Exhaust Pipe.
How do I know if my coolant temperature sensor is working?
To confirm, you could run your vehicle through an emissions test. If everything else is in order, failure in this test should be because of a faulty coolant temperature sensor. Another telltale sign of your coolant temperature sensor not functioning properly is if your engine is overheating frequently.
What happens when the coolant temperature sensor goes out?
The coolant temperature sensor can fail and transmit cold signals to the computer. This action confuses the computer and stimulates it to enrich the fuel mixture unnecessarily. This can cause the fuel mixture to be vibrant such that during combustion, the fuel can't be adequately consumed within the chamber.
Is there a fuse for coolant temperature sensor?
There isn't one per se. There will be a fused wire with voltage to the instrument cluster (your owners manual should indicate which fuse), but the temperature sensor is providing a variable "resistance to ground," which the temperature gauge in the dash is reflecting.
Does the coolant temp sensor control the fan?
As the control system receives the temperature from the CTS, it may trigger the cooling fan to either shut off or turn on. Additionally, it may signal the need for a richer fuel mixture or open the exhaust gas recirculation.
Can a temp sensor affect engine starting?
The sensor will not cause a no start. It could cause a hard start and a rich or lean condition only.
Why is my car reading hot but not overheating?
This problem can be due to a low coolant level in the radiator, a faulty thermostat, a bad radiator, a damaged head gasket, a faulty water pump, or it might just be a bad temperature sensor or gauge giving a false reading.
How many coolant temperature sensors are in a car?
There are two temperature sensors in some vehicles, one to send information from the engine system to the control unit and another from the control unit to the dashboard.
Do you need to drain coolant to change coolant temperature sensor?
Do you need to drain coolant to change coolant temperature sensor? Open the radiator valve and drain about two to three quarts of coolant. You only need to remove enough to drop the level below the sensor.
Can a coolant temperature sensor cause rough idle?
Can a bad coolant temp sensor cause rough idle? Yes, due to the false signal sent to the car computer, it will adjust the air-fuel mixture. The supplied mixture will not be enough and result in vibrations and shaking at idle or low-speed maneuvers and lead to other strange behavior and loss of engine power.
How much does it cost to replace a temperature sensor?
The average price for an engine temperature sensor replacement is between $150 and $193. Labor costs are between $82 and $105 while parts are between $66 and $88. Taxes and fees aren't included in the estimate.
What is a Coolant Temperature Sensor and How Does It Work?
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. The sensor works with the vehicle’s ECU, continually monitoring the coolant temperature to make sure the engine is running at the optimum temperature.
How to remove coolant sensor?
Coolant sensors are fitted like a spark plug, so you need to unscrew it to remove it. Using a deep socket and ratchet, carefully loosen the sensor in an anticlockwise direction, without applying too much pressure. A squirt of release spray can help free up stuck sensors. Once the sensor is loose, unscrew by hand and remove it from the socket. Coolant is likely to leak out at this point, so have the new one ready to replace it, or consider draining the coolant if required.
How does the ECU monitor engine temperature?
To get an accurate reading of the current engine temperature, the ECU sends a regulated voltage to the CTS. The resistance of the sensor varies with temperature, this is how the ECU can monitor temperature changes. The ECU uses this reading to calculate the coolant temperature, and from there adjusts the fuel injection, fuel mix, and ignition timing, and controls when the electric cooling fan is switched on and off. This information is also used to send an accurate reading of the engine temperature to a gauge on the dashboard.
How to connect CTS to ECU?
The CTS is connected to the ECU by a connector, which you’ll need to unfasten and remove. Do this carefully, as the plastic connector and wiring can often be brittle and will need completely replacing if it breaks. Disconnect the connector, and set the cable aside so it’s out the way.
How to get rid of a stuck sensor?
A squirt of release spray can help free up stuck sensors. Once the sensor is loose, unscrew by hand and remove it from the socket. Coolant is likely to leak out at this point, so have the new one ready to replace it, or consider draining the coolant if required.
How to tighten a CTS sensor?
Set the new sensor in the threads and twist clockwise by hand, making sure the sensor is well-seated in the socket. Then, using a torque wrench, tighten the sensor to the amount specified in the manufacturer’s instructions.
What should the dashboard gauge be when the engine is warmed up?
Irregular reading of the dashboard gauge (should be 88-90°C when the engine is warmed up)
Where is the coolant temperature sensor located?
The engine coolant temperature sensor is usually located on the engine block or cylinder head. It is often installed on a plastic hose on the coolant’s inlet. Different brands and car manufacturers have different ways of placing the coolant temperature sensor depending on the car design. Some vehicles may have more than one temperature sensor, ...
What is a Engine Coolant Temperature Sensor?
The principle working of this sensor involves the use of an electrical resistance that measures the temperature of the coolant. These measurements produce essential data for the engine system of your vehicle.
What does a faulty ECT sensor do?
A faulty ECT sensor can send a false signal to the onboard computer, resulting in an incorrect air-fuel mixture. For example, a faulty sensor can send a signal indicating the engine is cold when it is not, and more fuel will heat the engine quickly.
How to check a coolant sensor?
How to Diagnose a Faulty Engine Coolant Temperature Sensor? 1 Connect an OBD2 Scanner and look for related trouble codes. Check the live data to see the temperature from the sensor. If it is way off the range, check the wirings, and replace the sensor. 2 Locate the coolant temperature sensor in your vehicle by referring to the service manual. 3 Find the coolant temperature sensor and remove the connector plugs. 4 If you have two pins on the coolant temperature sensor, you can try ohm measure between these two pins. 5 Check your repair manual for the correct ohm-value at a given temperature. 6 If the value is wrong – replace the sensor. 7 If it seems fine, check the wirings and connectors between the coolant temperature sensor and the engine control module.
How much does it cost to replace a coolant temperature sensor?
The average coolant temperature sensor replacement cost is between $50 to $250, depending on the car model and labor costs. A coolant temperature sensor costs 30$ to 100$, and the labor costs 20$ to 150$.
What module adjusts the air-fuel mixture depending on the temperature?
With this information, the engine control module adjusts the air-fuel mixture depending on the temperature.
What to do if sensor value is wrong?
If the value is wrong – replace the sensor.
Coolant temp sensor location
Hey guys, on my s13, i just did a tune up and it runs better now. However, the car is still shaky at idle and i started messing with this sensor that i believe is the coolant temp sensor however i cannot confirm.
Re: Coolant temp sensor location
You are correct, this is the Coolant temp sensor. The Sensor gets read by the ecu, then out your gauge cluster.
Re: Coolant temp sensor location
You are correct, this is the Coolant temp sensor. The Sensor gets read by the ecu, then out your gauge cluster.