What is the knock control system and how do you check and replace a knock sensor on 1997 through 2001 Toyota Avalon?

The knock control system is designed to reduce spark knock by detecting abnormal engine vibration through a knock sensor, which produces a voltage output that is monitored by the PCM. The system retards ignition timing until the detonation ceases, allowing for optimal spark advance and improved driveability. To check a knock sensor, disconnect the electrical connector and use an ohmmeter to check for continuity between the knock sensor terminal and the body of the sensor. If continuity exists, replace the sensor. To replace the knock sensor, disconnect the battery cable, drain the cooling system, remove the intake manifold on V6 models, disconnect the electrical connector, and remove the sensor. When installing a new or reused sensor, ensure it is securely tightened (approximately 30 ft-lbs) and the threads are coated with thread sealant as necessary. Refill the cooling system and check for leaks.

How to replace the knock sensor on 2007 through 2015 Toyota Avalon?

To replace the knock sensor, begin by releasing the pressure from the fuel system and disconnecting the negative battery terminal. For four-cylinder models, remove the intake manifold and disconnect the electrical connector to access the knock sensor. Slide the sensor off the mounting stud, install the new sensor, and tighten the nut to 15 ft-lbs. As for the V6 engine models, remove the lower intake manifold. After that, unplug the knock sensor harness connector. Remove the sensors, clean the mounting surface, and install the new sensors. Tighten the bolts securely. In both cases, reinstall any parts that were removed and refill the cooling system.

Genuine Toyota Avalon Knock Sensor

Engine Knock Sensor

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Toyota Avalon Knock Control Sensor
Part Number: 89615-12090
$141.68 MSRP: $201.41
You Save: $59.73 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor, Knock Control; Knock Sensor
- Manufacturer Note: DENSO
- Replaces: 89615-32010, 89615-12050
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2000-2004 Toyota Avalon | XL, XLS | 6 Cyl 3.0L | 1MZFE; 1MZFE; MCX20L-AEPGKA, MCX20L-AEPGKK, MCX20L-AEPNKA, MCX20L-AEPNKK, MCX20L-AESGKA, MCX20L-AESNKA
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Toyota Avalon Knock Control Sensor
Part Number: 89615-20090
$137.45 MSRP: $195.41
You Save: $57.96 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Knock Control
- Replaced by: 89615-06010
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2005-2022 Toyota Avalon | Limited, Touring, XL, XLE, XLE Premium, XLE Touring Or Touring, XLS, XSE | 4 Cyl 2.5L, 6 Cyl 3.5L | 2ARFXE, 2GRFE, 2GRFKS, A25AFKS, A25AFXS; 2ARFXE, 2GRFE, 2GRFKS, A25AFKS, A25AFXS; AVX40L-AEXGBA, AVX40L-AEXPBA, AXXA55L-AEZGBA, AXXA55L-AEZPBA, AXXH50L-AEXGBA, AXXH50L-AEXPBA, AXXH50L-AEXQBA, AXXH51L-AEXGBA, AXXH51L-AEXPBA, AXXH51L-AEXQBA, GSX30L-AEAGKA, GSX30L-AEANKA, GSX30L-AEAPKA, GSX30L-AETGKA, GSX30L-AETNKA, GSX30L-AETPKA, GSX40L-AETGKA, GSX40L-AETPKA, GSX40L-AETQKA, GSX50L-AEZGBA, GSX50L-AEZPBA, GSX50L-AEZQBA, GSX50L-AEZSBA
View related parts
Toyota Avalon Knock Control Sensor
Part Number: 89615-06010
$137.45 MSRP: $195.41
You Save: $57.96 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Knock Control; Knock Sensor
- Replaces: 89615-BZ030, 89615-BZ040, 89615-20090
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2005-2022 Toyota Avalon | Limited, Touring, XL, XLE, XLE Premium, XLE Touring Or Touring, XLS, XSE | 4 Cyl 2.5L, 6 Cyl 3.5L | 2ARFXE, 2GRFE, 2GRFKS, A25AFKS, A25AFXS; 2ARFXE, 2GRFE, 2GRFKS, A25AFKS, A25AFXS; AVX40L-AEXGBA, A25AFXS; AXXA55L-AEZGBA, AVX40L-AEXPBA, AXXA55L-AEZGBA, AXXA55L-AEZPBA, AXXH50L-AEXGBA, AXXH50L-AEXPBA, AXXH50L-AEXQBA, AXXH51L-AEXGBA, AXXH51L-AEXPBA, AXXH51L-AEXQBA, GSX30L-AEAGKA, GSX30L-AEANKA, GSX30L-AEAPKA, GSX30L-AETGKA, GSX30L-AETNKA, GSX30L-AETPKA, GSX40L-AETGKA, GSX40L-AETPKA, GSX40L-AETQKA, GSX50L-AEZGBA, GSX50L-AEZPBA, GSX50L-AEZQBA, GSX50L-AEZSBA
View related parts
Toyota Avalon Knock Control Sensor
Part Number: 89615-32010
$141.68 MSRP: $201.41
You Save: $59.73 (30%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Knock Control
- Replaced by: 89615-12090
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2000-2003 Toyota Avalon | XL, XLS | 6 Cyl 3.0L | 1MZFE; 1MZFE; MCX20L-AEPGKA, MCX20L-AEPGKK, MCX20L-AEPNKA, MCX20L-AEPNKK, MCX20L-AESGKA, MCX20L-AESNKA
View related parts
Toyota Avalon Knock Control Sensor
Part Number: 89615-12040
$171.51 MSRP: $243.83
You Save: $72.32 (30%)
ADD TO CART
Product Specifications
- Other Name: Sensor, Knock Control; Knock Sensor
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1995-1999 Toyota Avalon | XL, XLS | 6 Cyl 3.0L | 1MZFE; 1MZFE; MCX10L-AEPGKA, MCX10L-AEPGKK, MCX10L-AEPNKA, MCX10L-AEPNKK, MCX10L-AESGKA, MCX10L-AESGKK, MCX10L-AESNKA, MCX10L-AESNKK

Toyota Avalon Knock Sensor

The Knock Sensor mentioned here is used in the Toyota Avalon cars for sensing the knock of the engine and passing the signals to the powertrain control module for the transformation of the ignition timing. Usually piezoelectric, it transforms oscillations to electrical signals to measure pressure spikes that represent knock. The Knock Sensor work of maintaining the ignition timing continually and hence ensuring that the engine's performance and durability is maintained especially when using sub-standard fuels such as low octane fuel. Sophisticated systems can control the timings for each of the cylinders at the same time as well as regulate boost pressure; thus, Avalon engines can work extremely close to the knock limit and have optimum performance under various circumstances.

If you are in demand for superior quality and affordable OEM Toyota Avalon Knock Sensor, then shop with us! We own a wide range of the reduced-priced genuine Toyota Avalon Knock Sensor. You can purchase in confidence as all parts come with a manufacturer's warranty. Any issues with our products? No need to worry as we have a hassle-free return policy to guide you every step of the way.

Toyota Avalon Knock Sensor Parts Questions & Experts Answers

Knock Control Sensor
89615-32010
Q: What is the knock control system and how do you check and replace a knock sensor on 1997 through 2001 Toyota Avalon?
A: The knock control system is designed to reduce spark knock by detecting abnormal engine vibration through a knock sensor, which produces a voltage output that is monitored by the PCM. The system retards ignition timing until the detonation ceases, allowing for optimal spark advance and improved driveability. To check a knock sensor, disconnect the electrical connector and use an ohmmeter to check for continuity between the knock sensor terminal and the body of the sensor. If continuity exists, replace the sensor. To replace the knock sensor, disconnect the battery cable, drain the cooling system, remove the intake manifold on V6 models, disconnect the electrical connector, and remove the sensor. When installing a new or reused sensor, ensure it is securely tightened (approximately 30 ft-lbs) and the threads are coated with thread sealant as necessary. Refill the cooling system and check for leaks.
Knock Control Sensor
89615-20090
Q: How to replace the knock sensor on 2007 through 2015 Toyota Avalon?
A: To replace the knock sensor, begin by releasing the pressure from the fuel system and disconnecting the negative battery terminal. For four-cylinder models, remove the intake manifold and disconnect the electrical connector to access the knock sensor. Slide the sensor off the mounting stud, install the new sensor, and tighten the nut to 15 ft-lbs. As for the V6 engine models, remove the lower intake manifold. After that, unplug the knock sensor harness connector. Remove the sensors, clean the mounting surface, and install the new sensors. Tighten the bolts securely. In both cases, reinstall any parts that were removed and refill the cooling system.