How to replace the Knock Sensor (KS) on 2005 Chevrolet Express 2500?

Begin Knock Sensor (KS) replacement by taking notes on battery disconnect caution then disconnecting the negative Battery Cable. Start by detaching the engine cover before taking off the ks harness connector. Start byfunctions by removing the ks bolt to remove the ks from its position. Before installation secure the new Knock Sensor with the bolt while tightening it until it reaches 25 n.m (18 lb ft). Next connect the ks harness connector before reinstalling the engine cover.

OEM 2005 Chevrolet Express 2500 Knock Sensor

Engine Knock Sensor

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2 Knock Sensors found

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2005 Chevrolet Express 2500 Knock Sensor Part Number: 12589867
$65.81 MSRP: $133.68
You Save: $67.87 (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 2005 Chevrolet Express 2500 Submodels:
- Base, LS, LT | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
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2005 Chevrolet Express 2500 Knock Sensor Part Number: 21024981
$32.61 MSRP: $61.25
You Save: $28.64 (47%)
Ships in 1 Business Day
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 2005 Chevrolet Express 2500 Submodels:
- Base, LS | 6 Cyl 4.3 L GAS

2005 Chevrolet Express 2500 Knock Sensor

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2005 Chevrolet Express 2500 Knock Sensor Parts and Q&A

Q: How to replace the Knock Sensor (KS) on 2005 Chevrolet Express 2500?
A: Begin Knock Sensor (KS) replacement by taking notes on battery disconnect caution then disconnecting the negative Battery Cable. Start by detaching the engine cover before taking off the ks harness connector. Start byfunctions by removing the ks bolt to remove the ks from its position. Before installation secure the new Knock Sensor with the bolt while tightening it until it reaches 25 n.m (18 lb ft). Next connect the ks harness connector before reinstalling the engine cover.