Chevy Trailblazer Knock Sensor


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Replaces OE number 12589867; AC DELCO KNOCK SENSOR -- A high quality, OE replacement knock sensor.
  • AC Delco
  • Sold Individually
Price: $52.75


8 Cyl 5.3L EXT LT, EXT North Face, EXT LS
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A high quality, direct fit OE replacement knock sensor; DELPHI KNOCK SENSOR -- 38.1 mm diameter, 21.84 mm hex size, 5500-6400 Hz frequency, 100 K Ohms resistance, M10 x 1.5 6 G Metric straight thread size.
  • Delphi
  • Sold Individually
Price: $32.39


8 Cyl 5.3L EXT LT, EXT North Face, EXT LS
KNOCK SENSOR -- Plug terminal type; With 90-day or 3,000-mile Standard limited warranty.
  • Standard
  • Sold Individually
Price: $61.71


8 Cyl 5.3L EXT LT, EXT North Face, EXT LS
If you think that the term detonation is only used to pertain to bombs, it could also mean the untimely ignition of fuel inside the cylinders of the engine. Detonation could result to high frequency vibrations in the engine compartment commonly known as knocks. Incidences of detonation occurs when the cylinders have been stocked with too much carbon, high temperature spark plugs that are useless in the operation of the engine, combustion chambers that are too hot, and premature spark timing. Knocks could use up most of the power generated by the engine and could ultimately damage the engine.

The Chevrolet Trailblazer engine could work efficiently and could generate higher horsepower whenever it is operating close to the detonation limit. Close, but not reaching the detonation limit, the engines are installed with a knock sensor to be able to sustain that amount of detonation to maximize its output. A Chevrolet Trailblazer knock sensor is a sensor mounted on the engine that uses electricity from pressurized crystals to detect high frequency vibration as a result of detonation. The electricity from the pressurized crystals is made to produce a certain amount of voltage relative to the vibration put on it. The knock sensors feed a voltage signal to the engine management computer whenever detonations are identified. The engine management system, in effect, would try to avoid a detonation by delaying the spark timing.

Chevrolet Trailblazer knock sensors perform two basic functions. One is to maximize the engine performance and the other one is to keep the detonation from causing damages to the engine. Although Chevrolet Trailblazer knock sensors are designed to give a long service life to the engine, damaged knock sensors due to lack of proper maintenance and check up could call for a replacement. Knock sensors could get damaged because of using higher volatility or lower octane fuel than allowed. A defective knock sensor could negatively affect the engine performance and worse, could cause damages to the engine components. At times like this, it is better to look for a substitute than suffer the consequences later.

When looking for the right place to get your Chevrolet Trailblazer knock sensor, go for the auto body parts shop that has long been trusted by the general public. Parts Train caters to your auto body parts replacement needs through our website. With us, you do not have to spend on additional costs of middle men or getting a malfunctioning set because we get our products straight from the manufacturers. Log on our website to get you started.



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