What is the rating of the coolant temperature sensor?
Average rating from 17,525 customers who received a Change Oil and Filter. The coolant temperature sensor, also known as the coolant temperature switch, is an engine management system sensor that is used to monitor the temperature of the engine’s coolant.
What are the symptoms of a bad coolant temperature switch?
1. Poor fuel economy 2. Black smoke from engine 3. Overheating engine 4. Check Engine Light comes on The coolant temperature sensor, also known as the coolant temperature switch, is an engine management system sensor that is used to monitor the temperature of the engine’s coolant.
Can a bad coolant sensor cause an overheating engine?
Overheating engine Another symptom of a problem with the coolant temperature sensor is an overheating engine. The coolant temperature sensor can also fail in a manner that causes it to send a permanently hot signal.
How much does it cost to replace a coolant temperature sensor?
Unscrew the ECT sensor in an anticlockwise direction, similar to how a spark plug is removed. Install the new sensor and reconnect the connector cable. The average replacement cost of the Coolant Temperature Sensor is between $100 and $220. The labour cost is between $40 and $140 while the part itself costs between $50 and $80.
How can I test the coolant temperature sensor?
Testing the ECT/CHT sensor Resistance: One way is to measure the resistance of the sensor at different engine temperatures and compare the readings to the specifications listed in the service manual. Measuring the resistance of the Engine coolant temperature (ECT) sensor.
What happens if your car coolant sensor is not correct?
Your engine is overheating: If the engine’s computer doesn’t receive the correct temperature reading, it may not slow the ignition timing and turn on the cooling fans when necessary, causing the engine to overheat. If this happens, pull off the road and shut the car off as quickly as possible, as overheating can quickly kill your engine.
How does the cylinder head temperature sensor work?
Some cars use a cylinder head temperature or CHT sensor instead of, or in addition to the ECT sensor. The CHT sensor (see the photo) works the same way, but it measures the temperature of the cylinder head metal and is not immersed in coolant. This allows the CHT sensor to measure the temperature of the engine correctly even with loss of coolant.