A knock sensor is one of the key sensors present in an automobile. Knocking or detonation occurs when an air-fuel mixture ignites without any external help permanently. Sustained knocking can cause serious damage to the engine. And it is the knock sensor that plays a key role in preventing knocking. It becomes faulty for many reasons. Inappropriate removal is one of the typical causes due to which it goes bad. Keeping a constant eye on the vehicle will help you to fix the issues in its earlier stage. Don’t wait for anything worst to happen. Just replace the knock sensor whenever you find it bad to prevent a horrible ride.

1. WHAT ARE THE
BAD KNOCK
SENSOR
SYNDROMES
ARISING IN THE
CAR?

2. Knock sensor is detecting the
unplanned explosions and
send a voltage signal to:

3. ● Engine control unit
● Powertrain control module

4. Whole module will delay the
ignition’s timing and prevent
engine detonation.

5. Sensors will prevent the
damage to the engine through
the pre-ignition process.

6. When the knock sensor is
malfunctioned, it will
produce some noticeable
signs.

7. Here are the common
syndromes of bad knock
sensors that you should look
out for.

8. Malfunctioned knock sensors
will produce intense
thumping noise from the
engine.
INTENSE NOISE

9. Due to the ignition of air and
fuel mixture inside the
cylinder these noises occur.

10. Worst sign of a bad knock
sensor is damaged internal
engine components of the car.
POOR ENGINE
PERFORMANCE

11. Without replacing the faulty
knock sensor can cause
several issues in a car such
as:

12. ● Car begins to drag and jerk around
● Produce smell coming from the engine
● Entire engine being destroyed

13. Illumination of engine light
on the dashboard is the early
sign of a bad knock sensor.
ILLUMINATED
ENGINE WARNING
LIGHT

14. Take the warning sign
seriously and inspect the car
before the problem gets
worse.

15. Many times, you notice that
the car doesn’t accelerate
when you step on the gas
pedal to accelerate.
POOR
ACCELERATION

16. Bad knock sensor can prevent
the acceleration from being
effective in the car.

17. If your car moves fewer miles
per gallon, then check the
knock sensor for damages.
POOR FUEL
ECONOMY

18. Poor fuel mileage conjunction
with above-defined signs
indicate bad knock sensors.

19. If you notice any of the signs
in the car, inspect the bad
knock sensor ASAP.
CONCLUSION

20. Consult with a certified and
trained mechanic for
replacing the bad knock
sensor in the car.

21. THANKYOU
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