How to service the knock sensor on 2003 GMC Sonoma?

In order to service the knock sensor, disconnect negative battery cable and also remove the distributor and the pipes of fuel. Unplug the harness of the knock sensor, loosen the retaining bolt, and deinstall the sensor. Install the new sensor and attach it with a bolt, reconnect the harness, reconnect the fuel pipes and distributor and reconnect the battery cable.

OEM 2003 GMC Sonoma Knock Sensor

Engine Knock Sensor

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2 Knock Sensors found

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2003 GMC Sonoma Knock Sensor Part Number: 21024981
$32.61 MSRP: $61.25
You Save: $28.64 (47%)
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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.
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Fits the following 2003 GMC Sonoma Submodels:
- SL, SLE, SLS | 6 Cyl 4.3 L GAS
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2003 GMC Sonoma Knock Sensor Part Number: 10456209
$13.65 MSRP: $25.64
You Save: $11.99 (47%)
Ships in 1-2 Business Days
Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor)
- Item Weight: 0.50 Pounds
- Item Dimensions: 2.9 x 2.1 x 1.7 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 10456209
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2003 GMC Sonoma Submodels:
- SL, SLE, SLS | 4 Cyl 2.2 L FLEX, 4 Cyl 2.2 L GAS

2003 GMC Sonoma Knock Sensor

With a comprehensive array of OEM 2003 GMC Sonoma Knock Sensor, from fuel pumps to door handles, our website is a one-stop-shop for your needs. All our genuine 2003 GMC Sonoma Knock Sensor are backed by the manufacturer's warranty and are offered at competitive prices in the market. Rest assured, you can shop with complete confidence.

2003 GMC Sonoma Knock Sensor Parts and Q&A

Q: How to service the knock sensor on 2003 GMC Sonoma?
A: In order to service the knock sensor, disconnect negative battery cable and also remove the distributor and the pipes of fuel. Unplug the harness of the knock sensor, loosen the retaining bolt, and deinstall the sensor. Install the new sensor and attach it with a bolt, reconnect the harness, reconnect the fuel pipes and distributor and reconnect the battery cable.