How to remove and install knock sensors in a Chevrolet Impala and Monte Carlo?

A pair of knock sensors is set up on either side of the block; they are located at the upper middle region of each block side, just below the exhaust manifolds. For V6 models, lift the front of the vehicle and safely support it on jackstands. While removing the knock sensor from the rear cylinder bank (bank 1) on a 3.9L V6 engine, detach the catalytic converter. Unplug the electrical connector housing from the knock sensor. When taking off either of them, remove its electrical connector as well as retaining bolt in case of a V6. Loosen knock sensor attaching nut and take out sensor. The reverse is true for installation; furthermore ensure that you have tightened down your sensor attaching nut for good measure . With reference to V8 models empty cooling system.You should raise front-end of car and secure it using jack stands.Disconnect knock sensor electrical plug.On a V8 engine, if you would like to remove a knock sensor first unplug its electrical connector then unscrew retaining bolt.Remove knock sensing unit retentive boll and withdraw sensing unit.Remember to tighten bolt after installing this kind of component.Pour coolant into system again.

Genuine Chevrolet Impala Knock Sensor

Engine Knock Sensor

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Chevrolet Impala Sensor Assembly, Knock
Part Number: 12623730
$13.41 MSRP: $25.30
You Save: $11.89 (47%)
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Product Specifications
- Other Name: SENSOR, Distributor (also Knock Sensor); Knock Sensor
- Replaces: 12570125
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2011 Chevrolet Impala | LS, LS POLICE CAR, LT, LT 3.5, LTZ, SS | 6 Cyl 3.5L, 6 Cyl 3.5L Flex, 6 Cyl 3.9L, 6 Cyl 3.9L Flex, 8 Cyl 5.3L
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Chevrolet Impala Sensor Assembly, Knock
Part Number: 12636736
$18.32 MSRP: $34.56
You Save: $16.24 (47%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: SENSOR, Distributor (also Knock Sensor); Camshaft Sensor, Knock Sensor
- Replaced by: 12729597
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2012-2020 Chevrolet Impala | LS, LS 4 DOOR NOTCHBACK, LT 4 DOOR NOTCHBACK, LTZ, LTZ 4 DOOR NOTCHBACK | 4 Cyl 2.4L, 6 Cyl 3.6L
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Chevrolet Impala Sensor Assembly, Knock
Part Number: 12623095
$21.68 MSRP: $40.92
You Save: $19.24 (48%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: SENSOR, Distributor (also Knock Sensor); Knock Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2019 Chevrolet Impala | LS 4 DOOR NOTCHBACK, LT 4 DOOR NOTCHBACK, LTZ 4 DOOR NOTCHBACK | 4 Cyl 2.5L
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Chevrolet Impala Sensor Assembly, Knock
Part Number: 12591625
$67.95 MSRP: $128.20
You Save: $60.25 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: SENSOR, Distributor (also Knock Sensor); Knock Sensor
- Replaces: 10456215
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000-2005 Chevrolet Impala | IMPALA, LS, LT, POLICE CAR, SS | 6 Cyl 3.8L
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Chevrolet Impala Sensor,Knock
Part Number: 10456288
$43.61 MSRP: $90.57
You Save: $46.96 (52%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: SENSOR, Distributor (also Knock Sensor); ESC Sensor, Knock Sensor
- Replaces: 10456018
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985 Chevrolet Impala | 4 DOOR, CLASSIC 2 DOOR, CLASSIC 4 DOOR, CLASSIC STATION WAGON | 6 Cyl 4.3L
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Chevrolet Impala Sensor Assembly, Knock
Part Number: 10456238
$18.77 MSRP: $60.45
You Save: $41.68 (69%)
ADD TO CART
Product Specifications
- Other Name: SENSOR, Distributor (also Knock Sensor); Knock Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000-2005 Chevrolet Impala | IMPALA, LS, LT, LUMINA, POLICE CAR, SS | 6 Cyl 3.4L
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Chevrolet Impala Sensor Assembly, Electronic Spark Control Knock
Part Number: 10456126
Product Specifications
- Other Name: SENSOR, Distributor (also Knock Sensor); Control Module, Knock Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1995 Chevrolet Impala | CLASSIC 4 DOOR, CLASSIC STATION WAGON, LS 4 DOOR | 8 Cyl 5.7L
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Chevrolet Impala Sensor,Knock
Part Number: 10456287
Product Specifications
- Other Name: SENSOR, Distributor (also Knock Sensor); Control Module, ESC Sensor, Knock Sensor, Sensor
- Replaces: 10456017
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996 Chevrolet Impala | CLASSIC 4 DOOR, CLASSIC STATION WAGON | 8 Cyl 5.7L
- 1982-1985 Chevrolet Impala | 4 DOOR, CLASSIC 2 DOOR, CLASSIC 4 DOOR, CLASSIC STATION WAGON, STATION WAGON | 6 Cyl 3.8L, 8 Cyl 4.4L, 8 Cyl 5.0L

Chevrolet Impala Knock Sensor Parts Questions & Experts Answers

Sensor Assembly, Knock
12623730
Q: How to remove and install knock sensors in a Chevrolet Impala and Monte Carlo?
A: A pair of knock sensors is set up on either side of the block; they are located at the upper middle region of each block side, just below the exhaust manifolds. For V6 models, lift the front of the vehicle and safely support it on jackstands. While removing the knock sensor from the rear cylinder bank (bank 1) on a 3.9L V6 engine, detach the Catalytic Converter. Unplug the electrical connector housing from the knock sensor. When taking off either of them, remove its electrical connector as well as retaining bolt in case of a V6. Loosen knock sensor attaching nut and take out sensor. The reverse is true for installation; furthermore ensure that you have tightened down your sensor attaching nut for good measure . With reference to V8 models empty cooling system.You should raise front-end of car and secure it using jack stands.Disconnect knock sensor electrical plug.On a V8 engine, if you would like to remove a knock sensor first unplug its electrical connector then unscrew retaining bolt.Remove knock sensing unit retentive boll and withdraw sensing unit.Remember to tighten bolt after installing this kind of component.Pour coolant into system again.