How to replace the Knock Sensor (KS) on GMC Envoy?

Primarily, to replace the Knock Sensor (KS), first, lift and support the vehicle to the height where you can access the KS through the wheelhouse, and remove the left wheelhouse liner. Pull off engine wiring harness electrical connector from KS and remove KS retaining bolt and then take out KS from engine block. For installation, make sure to install back the KS and the retaining bolt on to the engine block with the electrical terminals at the rear; tightening the knock sensor (KS) bolt to 25 N.m (18 lb ft). Next, reconnect the engine wiring harness electrical hookup to the KS and re- install the left wheelhouse liner and finally lower the vehicle.

OEM GMC Envoy Knock Sensor

Engine Knock Sensor

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GMC Envoy Knock Sensor
Part Number: 12623730
$13.47 MSRP: $25.30
You Save: $11.83 (47%)
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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:
- 2005-2009 GMC Envoy | Denali, SLE, SLT | 6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS
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GMC Envoy Knock Sensor
Part Number: 12567446
$26.64 MSRP: $50.00
You Save: $23.36 (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:
- 2003-2005 GMC Envoy | SLE, SLT | 6 Cyl 4.2 L GAS
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GMC Envoy Knock Sensor
Part Number: 24100388
$25.69 MSRP: $48.26
You Save: $22.57 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002 GMC Envoy | SLE, SLT | 6 Cyl 4.2 L GAS

GMC Envoy Knock Sensor

Our website offers an extensive catalog of genuine GMC Envoy Knock Sensor at unbeatable prices. Every OEM GMC Envoy Knock Sensor comes with a manufacturer's warranty, an easy return policy, and rapid delivery service. Don't miss out on this great opportunity!

GMC Envoy Knock Sensor Parts Questions & Experts Answers

Knock Sensor
12567446
Q: How to replace the Knock Sensor (KS) on GMC Envoy?
A: Primarily, to replace the Knock Sensor (KS), first, lift and support the vehicle to the height where you can access the KS through the wheelhouse, and remove the left wheelhouse liner. Pull off engine wiring harness electrical connector from KS and remove KS retaining bolt and then take out KS from engine block. For installation, make sure to install back the KS and the retaining bolt on to the engine block with the electrical terminals at the rear; tightening the knock sensor (KS) bolt to 25 N.m (18 lb ft). Next, reconnect the engine wiring harness electrical hookup to the KS and re- install the left wheelhouse liner and finally lower the vehicle.

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