How to service and repair the knock sensor (KS) on Ford Focus?

The service process for the knock sensor (KS) begins with breaking the connection between battery cable and ground. To get to the knock sensor one should first detach the intake manifold. First disconnect the knock sensor retaining bolt followed by uninstalling the knock sensor from its placement. The installation process of the knock sensor requires performing all steps in reverse order from removal.

OEM Ford Focus Knock Sensor

Engine Knock Sensor

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Ford Focus Knock Sensor Part Number: 1N1Z-12A699-A
$26.56 MSRP: $41.09
You Save: $14.53 (36%)
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Product Specifications
- Other Name: Sensor - Engine Knock; Ignition Knock (Detonation) Sensor
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2015-2018 Ford Focus | SE | 3 Cyl 1.0 L GAS
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Ford Focus Knock Sensor Part Number: 1S7Z-12A699-BB
$41.01 MSRP: $64.00
You Save: $22.99 (36%)
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Product Specifications
- Other Name: Sensor - Engine Knock; Ignition Knock (Detonation) Sensor; Sensor
- Replaces: 1S7Z-12A699-BA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2004-2018 Ford Focus | RS, S, SE, SEL, SES, ST, SVT, Titanium, ZX3, ZX4, ZX4 ST, ZX5, ZXW | 4 Cyl 2.0 L FLEX, 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS
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Ford Focus Knock Sensor Part Number: F8CZ-12A699-AA
Product Specifications
- Other Name: Sensor - Engine Knock; Ignition Knock (Detonation) Sensor
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2000-2004 Ford Focus | LX, SE | 4 Cyl 2.0 L GAS
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Ford Focus Knock Sensor Part Number: XS2Z-12A699-BA
Product Specifications
- Other Name: Sensor - Engine Knock; Ignition Knock (Detonation) Sensor
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2000-2004 Ford Focus | LX, SE, Sony Limited Edition, SVT, ZTS, ZTW, ZX3, ZX5 | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS

Ford Focus Knock Sensor

OEM Knock Sensor boasts unmatched quality. Each part goes through full quality checks. They adhere to Ford's official factory standards. These steps remove flaws and inconsistencies. So you can get Knock Sensor with long life and a perfect fit. Come to our website and find genuine Ford Focus parts. We keep a wide inventory of OEM Focus parts at the highly affordable prices. It's easy to search, compare, and pick what you need. You'll love the clear info and simple checkout. We offer top-rated customer service, and we reply fast. We also ship promptly to ensure your order arrives on time.

Knock Sensor is an important component of Ford Focus automobiles that identifies knock in the vehicle's engine and transmits signals to the powertrain control module to make necessary adjustments of the ignition time. Often piezoelectric, the sensor transforms the pressure oscillations into electricity and records the height of pressure spikes associated with knock. This, in turn, means that the ignition timing is adjustable, which is very useful for enhancing the car's performance and avoiding injury to the engine. Even the times are changeable for each cylinder and boost pressure also controlled to attain overall efficiency and durability in all circumstances possible. The Knock Sensor helps in ensuring efficiency in the engine and safeguard against destructive detonation.

Ford Focus Knock Sensor Parts and Q&A

Knock Sensor
1S7Z-12A699-BB
Q: How to service and repair the knock sensor (KS) on Ford Focus?
A:
The service process for the knock sensor (KS) begins with breaking the connection between Battery Cable and ground. To get to the knock sensor one should first detach the Intake Manifold. First disconnect the knock sensor retaining bolt followed by uninstalling the knock sensor from its placement. The installation process of the knock sensor requires performing all steps in reverse order from removal.