What does a knock sensor do?

Asked by Jan 03, 2017 at 09:01 PM about the 2002 Chrysler PT Cruiser Limited Wagon FWD

Question type: Maintenance & Repair

1 Answer

2,510

The knock sensor is located on the engine block, cylinder head or intake manifold. This is because its function is to sense vibrations caused by engine knock or detonation. The PCM uses this signal to alter the ignition timing and prevent detonation.

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