How to replace Knock Sensor 2 on Chevrolet Tahoe?

Begin the Knock Sensor 2 replacement process by lifting your vehicle properly above the ground. Choose the engine wiring harness electrical connector and cut it off from the knock sensor followed by removing both the knock sensor bolt (739) and the knock sensor (718). The knock sensor (718) must be placed onto the engine block while installing the knock sensor bolt (739) with a recommended torque of 25 Nm (18 lb ft). Reattach the engine wiring harness electrical connector to the knock sensor.

OEM Chevrolet Tahoe Knock Sensor

Engine Knock Sensor

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6 Knock Sensors found

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Chevrolet Tahoe 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:
- 2007-2014 Chevrolet Tahoe | Hybrid, LS, LT, LTZ | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L FULL HYBRID EV-FLEX (FHEV), 8 Cyl 6.0 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
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Chevrolet Tahoe Knock Sensor Part Number: 12623095
$23.43 MSRP: $44.02
You Save: $20.59 (47%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2015-2023 Chevrolet Tahoe | Commercial, High Country, LS, LT, LTZ, PPV, Premier, RST, SSV, Z71 | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
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Chevrolet Tahoe Knock Sensor Part Number: 12589867
$65.81 MSRP: $133.68
You Save: $67.87 (51%)
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Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor)
- Replaces: 10456603
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000-2006 Chevrolet Tahoe | Base, LS, LT, Z71 | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
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Chevrolet Tahoe Knock Sensor Part Number: 10456549
$38.42 MSRP: $119.81
You Save: $81.39 (68%)
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Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor); ESC Sensor
- Replaces: 10456031
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1995 Chevrolet Tahoe | Base, LS, LT | 8 Cyl 5.7 L GAS
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Chevrolet Tahoe Knock Sensor Part Number: 10456288
$47.98 MSRP: $97.45
You Save: $49.47 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor); ESC Sensor; Sensor, Engine Crankcase Ventilator
- Replaces: 10456018
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1995-2000 Chevrolet Tahoe | Base, Limited, LS, LT, Z71 | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
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Chevrolet Tahoe Knock Sensor Part Number: 10456019
Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1995 Chevrolet Tahoe | Base, LS, LT | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL

Chevrolet Tahoe Knock Sensor

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The Knock Sensor in Chevrolet Tahoe cars work to identify engine knock; this is an occurrence that is derivate from an improper ignition time. This device is used to communicate with PCM so that the ignition timing can be adjusted to reduce excess detonation. Commonly, the Tahoe comes with knock sensors that employ piezoelectricity, meaning that they promptly and constantly capture pressure spikes associated with knocking. Knock sensors have developed through the years and the newer designs are capable of diagnosing knock per cylinder, allowing for retarding or advancing the ignition timing per cylinder and as well as controlling boost pressure for some engine designs. This means they are able to set the engines to run at the maximum or nearly the maximum ' knock limit ' and get good performance without risking the engines even with low octane ratings fuel. Incorporation of such systems in the Tahoe represents optimization of engine management systems and their development for durability to maintain performance.

Chevrolet Tahoe Knock Sensor Parts Questions & Experts Answers

Knock Sensor
12623730
Q: How to replace Knock Sensor 2 on Chevrolet Tahoe?
A:
Begin the Knock Sensor 2 replacement process by lifting your vehicle properly above the ground. Choose the engine wiring harness electrical connector and cut it off from the knock sensor followed by removing both the knock sensor bolt (739) and the knock sensor (718). The knock sensor (718) must be placed onto the engine block while installing the knock sensor bolt (739) with a recommended torque of 25 Nm (18 lb ft). Reattach the engine wiring harness electrical connector to the knock sensor.