Knock
A
noise within an engine generally caused by detonation or preignition.
Knock-Off
A
single wing nut for fastening a wheel to the hub. Easily removed and
replaced, it is struck (knocked off) with a mallet on the wings.
Knock
Sensor The knock sensor senses when fuel is burning unevenly and
causing "knocking" or irregular vibrations in the engine.
It consists of an electric coil that is wound around two ceramic rods
with a magnet in the center. The vibration of the engine causes the
rods to vibrate. This disturbs the coil's magnetic field and alters
the current passing through the coil. This disturbance returns to the
computer as a signal pattern that the computer analyzes. The computer
then determines whether the vibrations are characteristic of engine knocking.
The objective of this Web Page is to familiarize you with basic auto maintenance
- in some common emergencies - not to make you an expert in auto mechanics
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something goes wrong, it is not my fault! These are just guidelines.
