How to replace the Bank 1 knock sensor on GMC Acadia?

To replace the bank 1 knock sensor, un-install the exhaust manifold lower heat shield. Next, remove the engine wiring harness electrical connector from bank 1 knock sensor . Unbolt the knock sensor and take the knock sensor off. For installation, mount the new back knock sensor and lock it to the sensor bolt (23 N.m. or 17 lb ft). Finally, reestablish a link with the bank 1 knock sensor and reconnect the engine wiring harness electrical connector and place the exhaust manifold lower heat shield back.

OEM GMC Acadia Knock Sensor

Engine Knock Sensor

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5 Knock Sensors found

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GMC Acadia Knock Sensor Part Number: 12618603
$37.07 MSRP: $69.61
You Save: $32.54 (47%)
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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:
- 2007-2008 GMC Acadia | SLE, SLT | 6 Cyl 3.6 L GAS
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GMC Acadia 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:
- 2017-2021 GMC Acadia | SL, SLE, SLT | 4 Cyl 2.5 L GAS
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GMC Acadia Knock Sensor Part Number: 55503494
$14.80 MSRP: $26.40
You Save: $11.60 (44%)
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Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor)
- Replaced by: 12737536
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2020-2023 GMC Acadia | Denali, SLE, SLT | 4 Cyl 2.0 L GAS
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GMC Acadia Knock Sensor Part Number: 12663209
$4.12 MSRP: $7.73
You Save: $3.61 (47%)
Ships in 1-2 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:
- 2020-2023 GMC Acadia | Denali, SLE, SLT | 4 Cyl 2.0 L GAS
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GMC Acadia 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:
- 2009-2023 GMC Acadia | AT4, Denali, SL, SLE, SLT | 6 Cyl 3.6 L GAS

GMC Acadia Knock Sensor

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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.

GMC Acadia Knock Sensor Parts Questions & Experts Answers

Knock Sensor
12618603
Q: How to replace the Bank 1 knock sensor on GMC Acadia?
A:
To replace the bank 1 knock sensor, un-install the exhaust manifold lower heat shield. Next, remove the engine wiring harness electrical connector from bank 1 knock sensor . Unbolt the knock sensor and take the knock sensor off. For installation, mount the new back knock sensor and lock it to the sensor bolt (23 N.m. or 17 lb ft). Finally, reestablish a link with the bank 1 knock sensor and reconnect the engine wiring harness electrical connector and place the exhaust manifold lower heat shield back.