What are the symptoms of a bad knock sensor? Signs Your Knock Sensor Needs Replacement
What are the symptoms of a bad knock sensor? Signs Your Knock Sensor Needs Replacement.
There are some signs to look out for that a knock sensor could be faulty.
'Check engine' light is on.
Excessive engine knocking.
Decreased acceleration.
Reduced engine power.
Lowered fuel efficiency.
Issues with idling.
A faulty knock sensor can, on some platforms, cause serious driveability issues but a failed knock sensor will usually cause no driveability issues at all - again, depending on the platform/vehicle/engine.
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