Where does the coolant temperature sensor go? On most vehicles, the coolant temperature sensor (CTS) can be found somewhere near the engine thermostat, which allows it to function optimally. The tip of the CTS is probably located right next to the engine coolant.

Where do you put a coolant temperature sensor? The coolant temperature sensor is located on the front of the engine block. This will vary on some cars where the pulleys are located on the side of the vehicle. However, the sensor is still located amongst the pulley system. Hold a drop light over the area and locate the sensor.

Where is the coolant temp sensor most commonly 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 happens when the coolant temperature sensor goes bad? If the coolant temperature sensor goes bad it can send a false signal to the computer and throw off the fuel and timing calculations. It is not uncommon for the coolant temperature sensor to fail and send a permanently cold signal to the computer. This will reduce fuel economy, and may hinder engine performance.

Where does the coolant temperature sensor go? – Related Questions

How much does it cost to replace a coolant 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.

How hard is it to change a coolant temperature 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.

Does the coolant temp sensor control the fan?

The sensor works by measuring the temperature that’s being given off by the thermostat and/or the coolant itself. The temperature is then sent to the on-board control system. As the control system receives the temperature from the CTS, it may trigger the cooling fan to either shut off or turn on.

How long does a coolant temperature sensor last?

Often, the engine coolant temperature sensor must be replaced at about 100,000 miles. If you don’t properly maintain the engine cooling system, the sensor could fail much earlier.

How do you check a coolant temperature sensor?

You will search for the sensor within the engine block itself, using a drop light if you need help to see it better. Look at the front of the engine block in the middle of the pulleys. You will see a small terminal sticking out of the block with a wire lead coming from it. This is your coolant temperature sensor.

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 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.

What causes coolant temperature sensor failure?

The engine may run in fail-safe mode:

Many Check Engine light codes related to the (ECT) sensor; could also be caused by other reasons. Such as a bad thermostat or issues with the cooling system; including even a leaking head gasket.

Can you clean a coolant temperature sensor?

In most cases, sensors for your automobile will need to be replaced if they fail, but depending on the type of sensor and its location or function, some can be cleaned and reused. Sensors can come in many types and are used for a variety of systems on modern cars.

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.

What does a temp sensor do?

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.

Can a bad coolant temp sensor cause rough idle?

HOW THE COOLANT SENSOR AFFECTS ENGINE OPERATION. A faulty coolant sensor that always reads cold may cause the fuel control system to run rich, pollute and waste fuel. A coolant sensor that always reads hot may cause cold driveability problems such as stalling, hesitation and rough idle.

Can you drive with a bad thermostat?

If it is failed in a closed position then you cannot really drive it with the thermostat broken, as the engine would overheat. This however will not generally have any impact on the ability to drive the car, at least if you let it warm up before you start driving.

What does engine coolant over temperature mean?

This temperature warning light means that your engine is running at a temperature that is too high – in other words, your engine is overheating. However, a problem with the cooling system or low coolant can cause the engine to overheat, which leads to engine damage.

Do you have to drain coolant before replacing 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. This will minimize coolant waste when you remove the sensor.

Does the coolant temperature sensor do?

The Coolant Temperature sensor changes resistance with the temperature. The Coolant Temperature sensor is critical to many PCM functions such as fuel injection, ignition timing, variable valve timing, and transmission shifting.

How do you check if cooling fans are working?

Unplug the fan connector closest to the fan. Make up some jumper cables. Then connect them directly, from the battery to the fan motor, to see if it spins. Consequently, if it does not spin it is blown.

What temperature should the radiator fan turn on?

Your radiator fan should kick in at about 200 degrees Fahrenheit. If you notice your vehicle is overheating or at the very least running hotter than it normally does, listen for the fan to see if you can hear it.

What is average coolant temp?

Normal Temperature engine temperature gauge

Most experts agree that your engine should run between 195 degrees and 220 degrees.

How do you trick a temperature sensor?

Alternatively if that doesn’t work and you’re feeling salty about it, put a cup of ice below it, or tape an cold pack ( like the ones you use for lunch box) to it because it will trick the sensor into thinking it’s colder than it is, and will engage the heat.

Can a coolant temp sensor cause starting problems?

The sensor will not cause a no start. It could cause a hard start and a rich or lean condition only.

How do you clean a thermostat sensor?

Thermostats can be cleaned by first removing the cover. Second, take a very soft brush (paintbrush) or compressed air to gently clean between the contact points and/or lever switches.