How to replace the Knock Sensor (KS) on 2004 GMC Safari?

In order to change the Knock Sensor (KS), disconnect the negative battery cable and take off the engine cover. Disassemble the harness of the knock sensor, disconnect the sensor and bolt. Install the new sensor and attach it with the bolt, restore the connection with the harness, the engine cover, and the battery cable.

OEM 2004 GMC Safari Knock Sensor

Engine Knock Sensor

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2004 GMC Safari 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.
More Info
Fits the following 2004 GMC Safari Submodels:
- Base, SL, SLE, SLT | 6 Cyl 4.3 L GAS

2004 GMC Safari Knock Sensor

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2004 GMC Safari Knock Sensor Parts and Q&A

Q: How to replace the Knock Sensor (KS) on 2004 GMC Safari?
A: In order to change the Knock Sensor (KS), disconnect the negative battery cable and take off the engine cover. Disassemble the harness of the knock sensor, disconnect the sensor and bolt. Install the new sensor and attach it with the bolt, restore the connection with the harness, the engine cover, and the battery cable.