How to replace Knock Sensor 2 on Cadillac STS?

First handle the supercharger assembly removal before disconnecting the knock sensor electrical connector and removing the bolt securing the KS to extract the sensor. Before installation the KS and engine block surfaces need thorough cleaning until the entire KS contact surface rests directly on the engine block. Fix the KS to its location using a bolt while making sure to eliminate the use of all washers including spring washers and toothed washers during the process and torque the bolt to 20 N.m (15 lb ft). Next install the wiring harness with care using the retaining clips before joining the KS electrical connector before putting back the supercharger assembly.

OEM Cadillac STS Knock Sensor

Engine Knock Sensor

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4 Knock Sensors found

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Cadillac STS Knock Sensor Part Number: 12623730
$13.47 MSRP: $25.30
You Save: $11.83 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor); Ignition Knock (Detonation) Sensor
- Replaces: 12570125
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2010 Cadillac STS | Base, Platinum, V | 8 Cyl 4.4 L GAS, 8 Cyl 4.6 L GAS
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Cadillac STS Knock Sensor Part Number: 12618603
$37.07 MSRP: $69.61
You Save: $32.54 (47%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor); Ignition Knock (Detonation) Sensor
- Replaces: 12566845
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2008 Cadillac STS | Base, Platinum | 6 Cyl 3.6 L GAS
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Cadillac STS Knock Sensor Part Number: 12567446
$27.17 MSRP: $51.00
You Save: $23.83 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor)
- Replaced by: 19434672
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2007 Cadillac STS | Base | 8 Cyl 4.6 L GAS
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Cadillac STS Knock Sensor Part Number: 12729597
$19.80 MSRP: $37.18
You Save: $17.38 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor); Camshaft Sensor
- Replaces: 12692505, 12605738, 12636736
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2011 Cadillac STS | Base, Platinum | 6 Cyl 3.6 L GAS

Cadillac STS Knock Sensor

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This Knock Sensor is one of the biggest improvements in the Cadillac STS reliability for automobiles. This advanced device serving as a sophisticated engine knock sensor is used to sense any typical knock that may be experienced by an engine if the ignition timing is wrong and is very useful in enhancing the efficiency of any given engine. Through transmitting signals to the powertrain control module (PCM), the Knock Sensor allows specific change of ignition time, thus reducing moreover detonation and eradicating underlying threat to the engine. This feature is especially useful for Cadillac STS cars that could sometimes run on lower octane fuels, so performance is not left affected. Knock Sensor work based on the fact that piezoelectric materials transform mechanical pressure into electrical impulses that can be constantly monitored to display the state of the engine. Thus, its compatibility with different Cadillac STS models reveals that it is useful in optimizing not only productivity but safety as well. Notably, the Knock Sensor provides an option to adjust the ignition timing per cylinder hence organizing the engine to work at its optimum level with regard to the driving dynamics. Thus, when speaking about the Knock Sensor, one should understand that this component also plays an important role in delivering the Cadillac STS automobiles as reliable and outstanding vehicles, thus strengthening the position of Cadillac as a purveyor of luxurious and high-performance automobiles.

Cadillac STS Knock Sensor Parts Questions & Experts Answers

Knock Sensor
12567446
Q: How to replace Knock Sensor 2 on Cadillac STS?
A:
First handle the supercharger assembly removal before disconnecting the knock sensor electrical connector and removing the bolt securing the KS to extract the sensor. Before installation the KS and engine block surfaces need thorough cleaning until the entire KS contact surface rests directly on the engine block. Fix the KS to its location using a bolt while making sure to eliminate the use of all washers including spring washers and toothed washers during the process and torque the bolt to 20 N.m (15 lb ft). Next install the wiring harness with care using the retaining clips before joining the KS electrical connector before putting back the supercharger assembly.