Where is the ECT sensor located?

Where is the ECT sensor located?

The ECT sensor is located in the left of the cylinder head and is connected to the Engine Coolant Temperature Sensor. Underneath the air intake pipe and behind the right cylinder head is where the Engine Coolant Temperature Sensor is located.

What happens when a ECT sensor goes bad?

One of the first symptoms associated with a problem with the coolant temperature sensor is poor fuel economy. If the coolant temperature sensor goes bad it can send a false signal to the computer and throw off the fuel and timing calculations. This will reduce fuel economy, and may hinder engine performance.

How do I know if my ECT is bad?

Determining the Symptoms of a Bad or Faulty ECT Sensor

  1. Hard starting, even when the engine is hot.
  2. Check Engine light on – usually showing a P0128 DTC code.
  3. Poor MPG.
  4. Poor idling or idling instability.
  5. Dirty emissions.
  6. Engine overheating.

How long does it take to replace a ECT sensor?

The actual process of replacing the coolant temperature sensor is extremely simple. However, the difficult work comes in the preparation of the cooling system – both before and after. Tip: This job should only be completed when the engine is cold and has not been running for a minimum of one hour.

How do I test my ECT sensor?


  1. Start with a cold engine.
  2. Attach an ohmmeter across the sensor’s terminals.
  3. Measure the sensor’s resistance and record the reading.
  4. Reconnect the sensor wiring connector.
  5. Start and run the engine for two minutes, then shut the engine off.

Do I have to drain coolant to replace ECT 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. Then close the drain valve. This will minimize coolant waste when you remove the sensor.

Can you drive a car without a temperature sensor?

Most automobile mechanics will tell you it is not a good idea to drive your car without a thermostat installed. If your thermostat becomes stuck in the closed position, though, this will cause your engine to overheat and make driving your car impossible.

Can you drive with a faulty coolant 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 vehicles coolant sensor is a critical component used by the engine management system. It directly effects, cooling and fueling of the engine and therefore effects how the engine performs.