Where is the knock sensor located and how do you remove and install it on Subaru Forester?

The knock sensor is situated below the intake manifold, upon the top of the engine block, to one side of the centre line of casings and near its rear end. For removal of the knock sensor, first take off the engine cover and disconnect a wire from its negative terminal. As for turbocharged models, remove them also from intercooler connections. For knocking sensor electrical connector disconnection push release tab and separate these two halves. See how it is placed before taking off and make a marking on an engine block where this pigtail is found. Take out this knock sensor retaining bolt then pull out this knock sensor. To fit in a new knock sensor reverse back with previous steps ensuring that tightening torque amount is recommended by manufacturer for particular vehicle model.

Genuine Subaru Forester Knock Sensor

Engine Knock Sensor

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8 Knock Sensors found

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Subaru Forester Knock Sensor Assembly
Part Number: 22060AA180
$149.76 MSRP: $218.95
You Save: $69.19 (32%)
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Product Specifications
- Other Name: Sensor Assembly-Knock; Knock Sensor
- Replaces: 22060AA160
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2011-2021 Subaru Forester | 2.0XT Premium, 2.0XT Touring, 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Touring, Base, Limited, Premium, Sport, Touring, X, X Limited, X Premium | 2.0L H4, 2.5L H4, 2.5L H4 DOHC
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Subaru Forester Knock Sensor Assembly
Part Number: 22060AA140
$90.56 MSRP: $131.25
You Save: $40.69 (31%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor Assembly-Knock; Knock Sensor
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2006-2013 Subaru Forester | Forester Sports, L.L.Bean, X, X Limited, XS, XT, XT Limited | 2.5L H4, 2.5L H4 DOHC Turbo, 2.5L H4 SOHC, 2.5L H4 Turbo
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Subaru Forester Knock Sensor
Part Number: 22060AA070
$94.53 MSRP: $137.00
You Save: $42.47 (31%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor Assembly-Knock
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1999-2002 Subaru Forester | Base, L, S | 2.5L H4 SOHC
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Subaru Forester Knock Sensor Assembly
Part Number: 22060AA100
$95.75 MSRP: $138.77
You Save: $43.02 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Knock; Knock Sensor
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2003-2004 Subaru Forester | X, XS | 2.5L H4
View related parts
Subaru Forester Knock Sensor Assembly
Part Number: 22060AA160
$149.76 MSRP: $218.95
You Save: $69.19 (32%)
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Knock; Knock Sensor
- Replaced by: 22060AA180
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2011-2017 Subaru Forester | 2.0XT Premium, 2.0XT Touring, 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Touring, X, X Limited, X Premium | 2.0L H4, 2.5L H4, 2.5L H4 DOHC
View related parts
Subaru Forester Knock Sensor Assembly
Part Number: 22060AA111
$95.75 MSRP: $138.77
You Save: $43.02 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Knock; Knock Sensor
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2004-2005 Subaru Forester | L.L.Bean, X, XS, XT | 2.5L H4, 2.5L H4 Turbo
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Subaru Forester Knock Sensor
Part Number: 22060AA061
$89.99 MSRP: $130.42
You Save: $40.43 (31%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Knock
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1998 Subaru Forester | Base, L, S | 2.5L H4 DOHC, 2.5L H4 DOHC (New EVAPO)
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Subaru Forester Knock Sensory Assembly
Part Number: 22060AA170
$197.48 MSRP: $288.73
You Save: $91.25 (32%)
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Knock
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2017-2018 Subaru Forester | 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Touring | 2.5L H4

Subaru Forester Knock Sensor

The Subaru Forester Knock Sensor is designed to act as a vibration sensor that sends signals to the engine control computer whenever knocks are detected in the combustion chamber. This helps to adjust ignition timing more precisely. The Knock Sensor is attached to the engine block, and its piezoelectric element converts sharp pressure pulses of knock into electrical signals that increase in voltage as vibration intensity increases. The control unit monitors this data continuously. When knock occurs, it retards spark timing in small steps until normal combustion resumes. It then advances timing carefully to keep operation close to the knock limit. The Knock Sensor enables the Subaru Forester to have stable performance, fuel economy, and emission control while avoiding damage to the internal parts of the engine. The Knock Sensor feature of Subaru Forester is common across all variants and allows smooth power delivery over different fuel and climate conditions. Even modern feedback strategies can work on individual cylinders, and if they have boost control, they can coordinate with that for extra protection. The Knock Sensor entails an electronic engine-control strategy applied by Subaru in its various models of Forester to control ignition. Reliable operation of the Knock Sensor is therefore central to the overall ignition management strategy on every Forester model equipped with such electronic systems.

Our website stands as the go-to online destination for OEM Subaru Forester Knock Sensor. With complete lines of genuine Subaru Forester Knock Sensor available at unbeatable market prices, we ensure top quality, reliability, and durability. Each part comes backed by the manufacturer's warranty, reinforcing your trust in our offerings.

Subaru Forester Knock Sensor Parts Questions & Experts Answers

Knock Sensor Assembly
22060AA140
Q:
Where is the knock sensor located and how do you remove and install it on Subaru Forester?
Posted by Stan G.
A:
The knock sensor is situated below the intake manifold, upon the top of the engine block, to one side of the centre line of casings and near its rear end. For removal of the knock sensor, first take off the engine cover and disconnect a wire from its negative terminal. As for turbocharged models, remove them also from intercooler connections. For knocking sensor electrical connector disconnection push release tab and separate these two halves. See how it is placed before taking off and make a marking on an engine block where this pigtail is found. Take out this knock sensor retaining bolt then pull out this knock sensor. To fit in a new knock sensor reverse back with previous steps ensuring that tightening torque amount is recommended by manufacturer for particular vehicle model.
Answered by Subaru Parts Specialist Edgar / May 23, 2022