How to replace the knock sensor on GMC Acadia?

Lift the vehicle and secure on jackstands. For the rear cylinder bank (Bank 1), remove the engine block heat shield. For the front cylinder bank (Bank 2), remove the oil filter. On 2009+ models, remove the catalytic converter to access Bank 2 sensor. Disconnect the knock sensor connector and remove the retaining bolt. Unscrew the bolt and remove the sensor. To install, reverse these steps and tighten the bolt to the specified torque.

Genuine GMC Acadia Knock Sensor

Engine Knock Sensor

Select Vehicle by Model
Select Vehicle by VIN

Select Vehicle by Model

Make

Model

Year

Select Vehicle by VIN

For the most accurate results, select vehicle by your VIN (Vehicle Identification Number).

5 Knock Sensors found

View related parts
GMC Acadia Sensor Assembly, Knock
Part Number: 12623095
$22.26 MSRP: $42.02
You Save: $19.76 (48%)
Ships in 1-3 Business Days
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:
- 2017-2021 GMC Acadia | SLE SUV, SLE2 & ALL TERRAIN SUV, SLE2 SUV, SLT & ALL TERRAIN SUV, SLT SUV | 4 Cyl 2.5L
View related parts
GMC Acadia Sensor Assembly, Knock
Part Number: 12618603
$36.90 MSRP: $69.61
You Save: $32.71 (47%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: SENSOR, Distributor (also Knock Sensor); Knock Sensor
- Replaces: 12566845
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2008 GMC Acadia | SPORT UTILITY VEHICLE 2WD, SPORT UTILITY VEHICLE 4WD | 6 Cyl 3.6L
View related parts
GMC Acadia SENSOR ASM-KNOCK
Part Number: 12729597
$18.82 MSRP: $35.50
You Save: $16.68 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Camshaft Sensor, Knock Sensor
- Replaces: 12692505, 12605738, 12636736
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2023 GMC Acadia | DENALI SUV, SLE SUV, SLE2 & ALL TERRAIN SUV, SLE2 SUV, SLT & ALL TERRAIN SUV, SLT SUV, SLT2 SUV, SPORT UTILITY VEHICLE 2WD, SPORT UTILITY VEHICLE 4WD, SPORT UTILITY VEHICLE AWD | 6 Cyl 3.6L
View related parts
GMC Acadia Sensor Assembly, Knock
Part Number: 12663209
$3.91 MSRP: $7.37
You Save: $3.46 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Knock Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2020-2023 GMC Acadia | DENALI SUV, SLE SUV, SLT SUV | 4 Cyl 2.0L
View related parts
GMC Acadia Sensor Assembly, Knock
Part Number: 55503494
$14.06 MSRP: $25.20
You Save: $11.14 (45%)
Product Specifications
- Other Name: Knock Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2020-2023 GMC Acadia | DENALI SUV, SLE SUV, SLT SUV | 4 Cyl 2.0L

GMC Acadia Knock Sensor

Knock Sensor is one of the significant components of GMC Acadia vehicles, and its operation includes the assessment of the engine knock and transmission of signals to the PCM to alter ignition timing. It somehow reduces the high detonation in the ignition cycle to improve performance and to decrease the tendencies of damages. Usually piezoelectric, knock sensor measures movements and transforms them into electrical signals that are then checked for the increased pressure associated with combustion knock. Using momentary adjustments to ignition timing the engine is run at the exact limit of knock with low octane fuels. They can also get the timetables for every cylinder enhanced and command boost pressure for optimum result and durability in one or many other circumstances.

Each OEM GMC Acadia Knock Sensor we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.

GMC Acadia Knock Sensor Parts Questions & Experts Answers

Sensor Assembly, Knock
12618603
Q: How to replace the knock sensor on GMC Acadia?
A: Lift the vehicle and secure on jackstands. For the rear cylinder bank (Bank 1), remove the engine block heat shield. For the front cylinder bank (Bank 2), remove the oil filter. On 2009+ models, remove the Catalytic Converter to access Bank 2 sensor. Disconnect the knock sensor connector and remove the retaining bolt. Unscrew the bolt and remove the sensor. To install, reverse these steps and tighten the bolt to the specified torque.