How to service and repair the knock sensor on Lincoln LS?

A ground cable battery disconnect must happen as the first step to service the knock sensor. Service and repair of the knock sensors requires removal of both intake manifold components when working on the top-mounted sensor type. The first step goes to disconnect both knock sensor (KS) electrical connectors from their top-mounted and side-mounted locations. You must remove the nut from the side-mounted KS or take out the bolt from the top-mounted KS. The installation of new sensors requires performing the opposite procedures used for removal.

How to Address Issues with the Knock Sensor on a Lincoln MKZ?

There are three steps to replace a knock sensor (KS): uninstalling the thermostat housing followed by the lower intake manifold and coolant tube while you need to discard the O-ring. You need to disconnect the electrical connector of the KS and then remove its two securing bolts. When installing the new KS use clean engine coolant to lubricate the new O-ring before putting everything together according to the removal instructions and secure the bolts with torque at 20 Nm (15 lb-ft).

How to service the knock sensor (KS) on Lincoln Navigator?

The service procedure for the knock sensor (KS) starts with intake manifold removal. The service of knock sensors begins with disconnecting their electrical connectors. The next task requires the removal of two bolts as well as two knock sensors. During installation of new sensors it is vital to tighten bolts to 20Nm (15lb-ft) before proceeding with the removal steps in reverse.

OEM Lincoln Knock Sensor

Engine Knock Sensor

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15 Knock Sensors found

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Lincoln Knock Sensor
Part Number: XL3Z-12A699-AA
$36.36 MSRP: $56.75
You Save: $20.39 (36%)
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Product Specifications
- Other Name: Sensor - Engine Knock; Ignition Knock (Detonation) Sensor
Fits the following Lincoln Models:
- Blackwood | 2002 | Base | 8 Cyl 5.4 L GAS
- Navigator | 2000-2004 | Base | 8 Cyl 5.4 L GAS
- Town Car | 2003-2011 | Cartier, Cartier L, Designer Series, Executive, Executive L, Executive Protection Series, Protection Series, Signature, Signature L, Signature Limited, Ultimate, Ultimate L | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS
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Lincoln Knock Sensor
Part Number: 1S7Z-12A699-BB
$44.85 MSRP: $70.00
You Save: $25.15 (36%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor - Engine Knock; Ignition Knock (Detonation) Sensor; Sensor
- Replaces: 1S7Z-12A699-BA
Fits the following Lincoln Models:
- MKC | 2015-2019 | Base, Black Label, Premiere, Reserve, Select | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS
- MKT | 2013-2016 | Base
- MKZ | 2011-2020 | Base, Black Label, Black Label Hybrid, Hybrid, Premiere, Premiere Hybrid, Reserve, Reserve Hybrid, Reserve I, Reserve I Hybrid, Reserve II, Reserve II Hybrid, Select, Select Hybrid | 4 Cyl 2.0 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV)
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Lincoln Knock Sensor
Part Number: 4L3Z-12A699-AA
$55.59 MSRP: $88.27
You Save: $32.68 (38%)
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Product Specifications
- Other Name: Sensor - Engine Knock; Ignition Knock (Detonation) Sensor
Fits the following Lincoln Models:
- Mark LT | 2006-2008 | Base | 8 Cyl 5.4 L GAS
- Navigator | 2005-2014 | Base, L, L Luxury, L Ultimate, Luxury, Ultimate | 8 Cyl 5.4 L FLEX, 8 Cyl 5.4 L GAS
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Lincoln Knock Sensor
Part Number: FT4Z-12A699-C
$49.70 MSRP: $81.78
You Save: $32.08 (40%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor - Engine Knock; Ignition Knock (Detonation) Sensor
- Replaced by: FT4Z-12A699-D
Fits the following Lincoln Models:
- Aviator | 2020-2023 | Base, Black Label, Black Label Grand Touring, Grand Touring, Livery, Reserve | 6 Cyl 3.0 L GAS, 6 Cyl 3.0 L PLUG-IN HYBRID EV-GAS (PHEV)
- Continental | 2017-2020 | 80th Anniversary Coach Door Edition, Black Label, Coach Door Edition, Reserve, Select | 6 Cyl 2.7 L GAS, 6 Cyl 3.0 L GAS
- MKX | 2016-2018 | Black Label, Premiere, Reserve, Select | 6 Cyl 2.7 L GAS
- Nautilus | 2019-2023 | Black Label, Reserve, Select | 6 Cyl 2.7 L GAS
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Lincoln Knock Sensor
Part Number: 1L2Z-12A699-AA
$105.23 MSRP: $167.09
You Save: $61.86 (38%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor - Engine Knock; Ignition Knock (Detonation) Sensor
- Manufacturer Note: Dual headed Bolt on type sensor
Fits the following Lincoln Models:
- Aviator | 2003 | Base | 8 Cyl 4.6 L GAS
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Lincoln Knock Sensor
Part Number: XW4Z-12A699-AA
$22.15 MSRP: $30.14
You Save: $7.99 (27%)
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Product Specifications
- Other Name: Sensor - Engine Knock
- Manufacturer Note: Shorter Of Two Sensors, Mount Side Of Block
Fits the following Lincoln Models:
- LS | 2000-2005 | Appearance, Base, LSE, Luxury, Premium | 6 Cyl 3.0 L GAS
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Lincoln Knock Sensor
Part Number: ML3Z-12A699-B
$152.40 MSRP: $242.00
You Save: $89.60 (38%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor - Engine Knock; Ignition Knock (Detonation) Sensor
- Replaces: ML3Z-12A699-A
Fits the following Lincoln Models:
- Navigator | 2022-2024 | Base, Black Label, L Base, L Black Label, L Livery, L Reserve, Reserve | 6 Cyl 3.5 L GAS
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Lincoln Knock Sensor
Part Number: JX6Z-12A699-A
$42.93 MSRP: $67.00
You Save: $24.07 (36%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor - Engine Knock; Ignition Knock (Detonation) Sensor
- Replaces: JX6Z-12A699-B
Fits the following Lincoln Models:
- Corsair | 2020-2023 | Base, Grand Touring, Reserve | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L PLUG-IN HYBRID EV-GAS (PHEV)
- Nautilus | 2019-2023 | Base, Black Label, Reserve, Select | 4 Cyl 2.0 L GAS
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Lincoln Knock Sensor
Part Number: 7T4Z-12A699-A
$68.21 MSRP: $108.31
You Save: $40.10 (38%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor - Engine Knock; Ignition Knock (Detonation) Sensor
- Replaces: 7T4Z-12A699-AB
Fits the following Lincoln Models:
- Continental | 2017-2020 | Base, Livery, Premiere, Select | 6 Cyl 3.7 L GAS
- MKS | 2009-2016 | Base, EcoBoost | 6 Cyl 3.5 L GAS, 6 Cyl 3.7 L GAS
- MKT | 2010-2019 | Base, EcoBoost, Livery, Premiere, Reserve | 6 Cyl 3.5 L GAS, 6 Cyl 3.7 L GAS
- MKX | 2007-2018 | Base, Black Label, Premiere, Reserve, Select | 6 Cyl 3.5 L GAS, 6 Cyl 3.7 L GAS
- MKZ | 2007-2016 | Base, Black Label | 6 Cyl 3.5 L GAS, 6 Cyl 3.7 L GAS
- Navigator | 2015-2021 | Base, Black Label, L, L Black Label, L Livery, L Reserve, L Select, Premiere, Reserve, Select | 6 Cyl 3.5 L GAS
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Lincoln Knock Sensor
Part Number: FT4Z-12A699-D
$51.50 MSRP: $81.78
You Save: $30.28 (38%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor - Engine Knock; Ignition Knock (Detonation) Sensor
- Replaces: FT4Z-12A699-C, FT4Z-12A699-B
Fits the following Lincoln Models:
- Aviator | 2020-2023 | Base, Black Label, Black Label Grand Touring, Grand Touring, Livery, Reserve | 6 Cyl 3.0 L GAS, 6 Cyl 3.0 L PLUG-IN HYBRID EV-GAS (PHEV)
- Continental | 2017-2020 | 80th Anniversary Coach Door Edition, Black Label, Coach Door Edition, Reserve, Select | 6 Cyl 2.7 L GAS, 6 Cyl 3.0 L GAS
- MKX | 2016-2018 | Black Label, Premiere, Reserve, Select | 6 Cyl 2.7 L GAS
- MKZ | 2017-2020 | Black Label, Reserve, Reserve II, Select | 6 Cyl 3.0 L GAS
- Nautilus | 2019-2023 | Black Label, Reserve | 6 Cyl 2.7 L GAS
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Lincoln Knock Sensor
Part Number: F77Z-12A699-AA
Product Specifications
- Other Name: Sensor - Engine Knock; Ignition Knock (Detonation) Sensor
Fits the following Lincoln Models:
- Navigator | 1998-1999 | Base | 8 Cyl 5.4 L GAS
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Lincoln Knock Sensor
Part Number: F65Z-12A699-AA
Product Specifications
- Other Name: Sensor - Engine Knock
Fits the following Lincoln Models:
- Continental | 1995-2000 | Anniversary, Base, Diamond Anniversary, Signature, Spinnaker Edition | 8 Cyl 4.6 L GAS
- Mark VIII | 1996-1997 | Anniversary, Base, LSC | 8 Cyl 4.6 L GAS
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Lincoln Knock Sensor
Part Number: XS8Z-12A699-AA
Product Specifications
- Other Name: Sensor - Engine Knock; Ignition Knock (Detonation) Sensor
Fits the following Lincoln Models:
- LS | 2000-2006 | Appearance, Base, LSE, Luxury, Premium, Sport, Ultimate | 6 Cyl 3.0 L GAS, 8 Cyl 3.9 L GAS
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Lincoln Knock Sensor
Part Number: XF3Z-12A699-AA
Product Specifications
- Other Name: Sensor - Engine Knock
- Manufacturer Note: Sensor asy. (Knock) #XF3F 12A699-AA
Fits the following Lincoln Models:
- Aviator | 2003-2005 | Base | 8 Cyl 4.6 L GAS
- Continental | 2001-2002 | Base | 8 Cyl 4.6 L GAS
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Lincoln Knock Sensor
Part Number: 3M8Z-12A699-AA
Product Specifications
- Other Name: Sensor - Engine Knock; Ignition Knock (Detonation) Sensor
Fits the following Lincoln Models:
- Zephyr | 2006 | Base | 6 Cyl 3.0 L GAS

Lincoln Knock Sensor Parts Questions & Experts Answers

Knock Sensor
XW4Z-12A699-AA
Q: How to service and repair the knock sensor on Lincoln LS?
A: A ground cable battery disconnect must happen as the first step to service the knock sensor. Service and repair of the knock sensors requires removal of both intake manifold components when working on the top-mounted sensor type. The first step goes to disconnect both knock sensor (KS) electrical connectors from their top-mounted and side-mounted locations. You must remove the nut from the side-mounted KS or take out the bolt from the top-mounted KS. The installation of new sensors requires performing the opposite procedures used for removal.
Knock Sensor
7T4Z-12A699-A
Q: How to Address Issues with the Knock Sensor on a Lincoln MKZ?
A: There are three steps to replace a knock sensor (KS): uninstalling the thermostat housing followed by the lower intake manifold and coolant tube while you need to discard the O-ring. You need to disconnect the electrical connector of the KS and then remove its two securing bolts. When installing the new KS use clean engine coolant to lubricate the new O-ring before putting everything together according to the removal instructions and secure the bolts with torque at 20 Nm (15 lb-ft).
Knock Sensor
4L3Z-12A699-AA
Q: How to service the knock sensor (KS) on Lincoln Navigator?
A: The service procedure for the knock sensor (KS) starts with intake manifold removal. The service of knock sensors begins with disconnecting their electrical connectors. The next task requires the removal of two bolts as well as two knock sensors. During installation of new sensors it is vital to tighten bolts to 20Nm (15lb-ft) before proceeding with the removal steps in reverse.