How to Determine the Failed Knock Sensor in your Car

1
How to Determine the Failed Knock Sensor in your
Car
2
Engine detonation occurs in the internal
combustion process when

• Gasoline in the cylinder explodes

• Changes in the ignition timing

3
Detonation is generally referred to as engine
knocking.
4
Knock sensor is responsible for the following
functions

• Detect the detonation vibrations

• Send voltage signal to PCM

5
Sensor prevents the engine damage through
pre-ignition process.
6
If knock sensor is damaged, following signs you
will notice in a car.
7
Unusual Sounds
8
Failed knock sensor can cause loud noise from
the engine.
9
Noise occurs due to the ignition of air and fuel
mixture inside the cylinder.
10
Poor Acceleration
11
Failed knock sensor prevents the acceleration
from being effective.
12
So, when you step on the gas pedal to accelerate,
it doesn't accelerate first.
13
Low Fuel Mileage
14
Fewer miles per gallon are mostly occurring due
to a failed knock sensor.
15
When you notice the low fuel mileage on the car,
then check the knock sensor.
16
Illuminated Engine Warning Light
17
Illuminated engine warning light on the dashboard
indicates failed knock sensor.
18
Ignoring the warning light for too long may
devastate the engine effects.
19
Depressed Engine Performance
20
When the engine starts to drag and jerk around,
check the knock sensor.
21
Failed knock sensor also produces a burning
smell from the engine.
22
Conclusion
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When you will notice these signs, replace the
knock sensor.
24
Consult with a reputed mechanic for inspection
and replacement.
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