What are the symptoms of a bad temperature coolant sensor?

Symptoms of a bad or failing coolant temperature switch (sensor)

• Poor fuel economy. One of the first symptoms associated with a problem with the coolant temperature sensor is poor fuel economy.
• Black smoke from engine.
• Overheating engine.
• Check Engine Light comes on.

What happens if you unplug the coolant temp sensor?

What Happens If You Unplug The Coolant Temp Sensor? Unplugging the engine coolant sensor while the car is running will likely cause the engine to stumble and run rough. The engine will run rich, so you’ll smell raw gas and you may see black smoke from the tail pipe.

Can a coolant temperature sensor work intermittently?

No, it’s not necessary. However, there might be an intermittent fault related to the engine temperature control and it’s difficult to determine if it is the thermostat or the coolant temperature sensor. In this case, both are usually replaced at the same time.

What makes coolant temperature sensor go bad?

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 a coolant temperature 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.

How long does it take to replace a coolant 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 long does a coolant temperature sensor last?

about 100,000 miles
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.

What are the symptoms of a bad coolant temperature sensor?

Here is a more detailed list of the common symptoms of a bad coolant temperature sensor. One of the first sign of all coolant temprature sensor symptoms you will probably notice is that the check engine light will activate on your dashboard.

How much does it cost to replace a coolant temperature sensor?

On average for most vehicles, the cost for the parts involved in the replacement of the coolant temperature sensor was from $55 to $80. However, the lower end of the coolant temperature sensor price was as little as $36, while the higher end of the coolant temperature sensor parts price was as much as $90.

How is the masterpro coolant temperature sensor rated?

Filter your results by entering your Year, Make, Model to ensure you find the parts that fit your vehicle. 4.5 out of 5 stars. Read reviews for MasterPro Ignition 2 Terminal Coolant Temperature Sensor

When to check your coolant sensor at O’Reilly?

If your engine is frequently overheating or using more gas than usual, it‘s time to check on your coolant sensor. Black smoke from the exhaust pipe may also point to failure in this sensor. At O’Reilly Auto Parts, we offer sensors and switches for many vehicles.