How to replace the Knock Sensor (KS) on Chevrolet HHR?

To replace the knock sensor (KS), first, lift and adequately support the vehicle. You need to disconnect the knock sensor harness electrical connector, also uninstall the KS bolt and the KS. To install, begin installing the KS while obeying the observations written in the Fastener Notice. Next, install the KS bolt and torque to 25 N.m (18 lb. ft.). Finally, you can reattach the KS harness electrical connector and lower the vehicle.

OEM Chevrolet HHR Knock Sensor

Engine Knock Sensor

Select Vehicle by Model
Select Vehicle by VIN

Select Vehicle by Model

Make

Model

Year

Select Vehicle by VIN

For the most accurate results, select vehicle by your VIN (Vehicle Identification Number).

3 Knock Sensors found

View related parts
Chevrolet HHR Knock Sensor Part Number: 12621820
$17.52 MSRP: $32.90
You Save: $15.38 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor); Ignition Knock (Detonation) Sensor
- Replaced by: 19434675
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2010 Chevrolet HHR | LS, LS Panel, LT, LT Panel, SS, SS Panel | 4 Cyl 2.0 L GAS, 4 Cyl 2.2 L FLEX, 4 Cyl 2.4 L FLEX
View related parts
Chevrolet HHR Knock Sensor Part Number: 12729597
$19.80 MSRP: $37.18
You Save: $17.38 (47%)
Ships in 1-2 Business Days
ADD TO CART
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:
- 2011 Chevrolet HHR | LS, LS Panel, LT | 4 Cyl 2.2 L FLEX, 4 Cyl 2.4 L FLEX
View related parts
Chevrolet HHR Knock Sensor Part Number: 12567711
$28.40 MSRP: $53.34
You Save: $24.94 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor)
- Replaced by: 19434674
- Replaces: 12589373, 24577244, 12615500
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2008 Chevrolet HHR | LS, LS Panel, LT, LT Panel, SS | 4 Cyl 2.0 L GAS, 4 Cyl 2.2 L GAS, 4 Cyl 2.4 L GAS

Chevrolet HHR Knock Sensor

Want to cut long-term maintenance and repair costs? Choose OEM Knock Sensor. Those parts deliver top durability you can trust. On our site, you'll find a huge catalog of genuine Chevrolet HHR parts. Prices are unbeatable, so you can keep more in your pocket. Every OEM Chevrolet HHR Knock Sensor includes a manufacturer's warranty. You can also get an easy return policy that keeps buying risk free. Fast delivery, get your car on the road quickly. It's simple to search, compare, and order. Stop guessing about quality or fit. Order today and save with parts that last.

The Knock Sensor in Chevrolet HHR vehicles is a vital part which monitors the knock of the engine and transfers the signals to the powertrain control module to manage the ignition timing. This is useful in avoiding over detonation in the ignition cycle, improving the performance and reducing on the likelihood of the engine being damaged. Usually piezoelectric, the knock sensor transforms the pressure variations into electrical signals which are then permanently checked for pressure spikes typically scoring as knock. The engine is then run just on the borderline of the 'knock limit' by slight frequency changes in the ignition with high volatile fuels and even with the small octane values of fuel. It also has the option to change even cylinder timings and control the boost pressure for optimality as well as durability in different settings.

Chevrolet HHR Knock Sensor Parts Questions & Experts Answers

Knock Sensor
12567711
Q: How to replace the Knock Sensor (KS) on Chevrolet HHR?
A:
To replace the knock sensor (KS), first, lift and adequately support the vehicle. You need to disconnect the knock sensor harness electrical connector, also uninstall the KS bolt and the KS. To install, begin installing the KS while obeying the observations written in the Fastener Notice. Next, install the KS bolt and torque to 25 N.m (18 lb. ft.). Finally, you can reattach the KS harness electrical connector and lower the vehicle.