How to replace the Knock Sensor (KS) on 2005 Chevrolet Trailblazer?

First elevate the vehicle for KS replacement. Start by disconnecting the knock sensor harness connector before removing the knock sensor retaining bolt. Slice the proper knock sensor (1 or 2) from its housing. The knock sensor installation requires you to position (1 or 2) along with the securing bolt which requires 25 N.m (18 lb ft) torque compliance per Component Fastener Tightening Notice in Service Precautions. Reconnect the knock sensor harness and reinstall the vehicle afterward.

OEM 2005 Chevrolet Trailblazer Knock Sensor

Engine Knock Sensor

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2005 Chevrolet Trailblazer Knock Sensor
Part Number: 12567446
$26.64 MSRP: $50.00
You Save: $23.36 (47%)
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Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor)
- Replaced by: 19434672
- Item Weight: 0.40 Pounds
- Item Dimensions: 2.7 x 2.2 x 1.3 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12567446
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2005 Chevrolet Trailblazer Submodels:
- LS, LT, LTZ, North Face | 6 Cyl 4.2 L GAS

2005 Chevrolet Trailblazer Knock Sensor

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2005 Chevrolet Trailblazer Parts Questions & Experts Answers

Q: How to replace the Knock Sensor (KS) on 2005 Chevrolet Trailblazer?
A: First elevate the vehicle for KS replacement. Start by disconnecting the knock sensor harness connector before removing the knock sensor retaining bolt. Slice the proper knock sensor (1 or 2) from its housing. The knock sensor installation requires you to position (1 or 2) along with the securing bolt which requires 25 N.m (18 lb ft) torque compliance per Component Fastener Tightening Notice in Service Precautions. Reconnect the knock sensor harness and reinstall the vehicle afterward.

Related 2005 Chevrolet Trailblazer Parts

Alternate Year Models

2004 Chevrolet Trailblazer Knock Sensor 2006 Chevrolet Trailblazer Knock Sensor