How to replace the Knock Sensor (KS) on 2004 Chevrolet Silverado 1500?

Proper replacement of the Knock Sensor (KS) requires Distributor detachment followed by disconnection of the Knock Sensor electrical connector and removal of the Knock Sensor bolt before removing the sensor. Start Knock Sensor installation by putting the Knock Sensor into place but always follow the instructions provided in the service precautions fastener notice. Secure the Knock Sensor bolt to a torque of 25 n.m (18 lb ft). Begin by installing the Knock Sensor electrical connector and finishing up by reinstalling the Distributor.

OEM 2004 Chevrolet Silverado 1500 Knock Sensor

Engine Knock Sensor

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2 Knock Sensors found

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2004 Chevrolet Silverado 1500 Knock Sensor
Part Number: 12589867
$64.53 MSRP: $131.06
You Save: $66.53 (51%)
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Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor)
- Replaces: 10456603
- Item Weight: 0.50 Pounds
- Item Dimensions: 2.9 x 2.8 x 2.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- Require Quantity: 2
- SKU: 12589867
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2004 Chevrolet Silverado 1500 Submodels:
- Base, Hybrid, LS, LT, SS, WT, Z71 Off-Road | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
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2004 Chevrolet Silverado 1500 Knock Sensor
Part Number: 21024981
$31.97 MSRP: $60.05
You Save: $28.08 (47%)
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ADD TO CART
Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor)
- Replaced by: 19434673
- Replaces: 21024729
- Item Weight: 0.40 Pounds
- Item Dimensions: 2.0 x 2.1 x 1.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 21024981
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2004 Chevrolet Silverado 1500 Submodels:
- Base, LS, LT, WT | 6 Cyl 4.3 L GAS

2004 Chevrolet Silverado 1500 Knock Sensor

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2004 Chevrolet Silverado 1500 Parts Questions & Experts Answers

Q: How to replace the Knock Sensor (KS) on 2004 Chevrolet Silverado 1500?
A: Proper replacement of the Knock Sensor (KS) requires Distributor detachment followed by disconnection of the Knock Sensor electrical connector and removal of the Knock Sensor bolt before removing the sensor. Start Knock Sensor installation by putting the Knock Sensor into place but always follow the instructions provided in the service precautions fastener notice. Secure the Knock Sensor bolt to a torque of 25 n.m (18 lb ft). Begin by installing the Knock Sensor electrical connector and finishing up by reinstalling the Distributor.

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Alternate Year Models

2003 Chevrolet Silverado 1500 Knock Sensor 2005 Chevrolet Silverado 1500 Knock Sensor