The temperature of the coolant is regulated by a sensor. The coolant temperature sensor uses an electrical resistance to monitor the temperature. Problems with this sensor can cause engine overheating issues and poor fuel economy. See this slideshow to know how to recognize a faulty coolant temperature sensor in your car.

1. How to Recognize the
Faulty Coolant Temperature
Sensor in your Car?

2. Temperature plays an
important role in calculating
the engine performance.

3. Coolant temperature sensor used
to monitor the temperature of the
engine’s coolant.

4. By using electrical resistance, it is
measuring the coolant temperature.

5. Problems in the sensor can
quickly translate into an
engine performance issue.

6. Here is the list of signs that
indicate faulty coolant
temperature sensors in cars.

7. Overheated
engine

8. Problems with the coolant
temperature sensor can cause
engine overheating issues.

9. Failed sensors can send hot signals
and result in overheating and
misfiring.

10. Lower fuel
mileage

11. Another problem associated
with the failed coolant sensor
is lower fuel mileage.

12. When it goes bad, send a false
signal to the computer and
throw off the fuel.

13. Illuminated check
engine light

14. Issues with the coolant
temperature sensor can
illuminate the check engine light.

15. Computer will set off a check
engine light when it detects a
problem in the sensor's signal.

16. Produce black smoke

17. Damaged coolant temperature
sensors produce black smoke
from the car’s exhaust.

18. Failed sensors can send a cold
signal to the computer and cause
unnecessary fuel mixture.

19. Coolant temperature sensor
plays a key role in calculations
that affect the engine
performance.

20. If you suspect any issues in
the sensor, inspect it by a
professional technician.

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