F 150 4WD Pickup V8-5.4L VIN V Flex Fuel (2006)
Knock Sensor: Description and Operation
KNOCK SENSOR (KS)
Two Types Of Knock Sensor (KS)
The KS 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.