How to Determine the Failed Knock Sensor in your Car

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Category: Others/ Misc
     
 

Presentation Description

The knock sensor detects the detonation vibrations and sends a voltage signal to PCM. But if the knock sensor is out of order, it will lead to unusual sounds, poor acceleration and low fuel mileage. You may also get poor engine performance. See this slideshow to be able to quickly determine the failed knock sensor in your car.

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Presentation Transcript

Slide1:

How to Determine the Failed Knock Sensor in your Car

Slide2:

Engine detonation occurs in the internal combustion process when: Gasoline in the cylinder explodes Changes in the ignition timing

Slide3:

Detonation is generally referred to as engine knocking.

Slide4:

Knock sensor is responsible for the following functions: Detect the detonation vibrations Send voltage signal to PCM

Slide5:

Sensor prevents the engine damage through pre-ignition process.

Slide6:

If knock sensor is damaged, following signs you will notice in a car.

Slide7:

Unusual Sounds

Slide8:

Failed knock sensor can cause loud noise from the engine.

Slide9:

Noise occurs due to the ignition of air and fuel mixture inside the cylinder.

Slide10:

Poor Acceleration

Slide11:

Failed knock sensor prevents the acceleration from being effective.

Slide12:

So, when you step on the gas pedal to accelerate, it doesn't accelerate first.

Slide13:

Low Fuel Mileage

Slide14:

Fewer miles per gallon are mostly occurring due to a failed knock sensor.

Slide15:

When you notice the low fuel mileage on the car, then check the knock sensor.

Slide16:

Illuminated Engine Warning Light

Slide17:

Illuminated engine warning light on the dashboard indicates failed knock sensor.

Slide18:

Ignoring the warning light for too long may devastate the engine effects.

Slide19:

Depressed Engine Performance

Slide20:

When the engine starts to drag and jerk around, check the knock sensor.

Slide21:

Failed knock sensor also produces a burning smell from the engine.

Slide22:

Conclusion

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When you will notice these signs, replace the knock sensor.

Slide24:

Consult with a reputed mechanic for inspection and replacement.

Slide25:

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