Explorer 2WD V6-4.0L VIN K Flex Fuel (2002)
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Knock Sensor: Description and Operation
Knock Sensor
Knock Sensor (KS)
The knock Sensor (KS) (Figure 34) is a tuned accelerometer on the engine which converts engine vibration to an electrical signal. The PCM uses this
signal to determine the presence of engine knock and to retard spark timing.