How to replace the Knock Sensor (KS) on 2008 Chevrolet Express 3500?

To replace the knock sensor (KS), first remove the intake manifold, then detach the KS wiring harness assembly and remove the KS. For installation, follow the fastener notice, install the KS and torque the sensor, then reconnect the KS wiring harness assembly and reinstall the intake manifold.

OEM 2008 Chevrolet Express 3500 Knock Sensor

Engine Knock Sensor

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2008 Chevrolet Express 3500 Knock Sensor Part Number: 12623730
$13.47 MSRP: $25.30
You Save: $11.83 (47%)
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Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor); Ignition Knock (Detonation) Sensor
- Replaces: 12570125
- Item Weight: 0.50 Pounds
- Item Dimensions: 2.7 x 2.5 x 1.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12623730
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2008 Chevrolet Express 3500 Submodels:
- Base, LS, LT | 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS

2008 Chevrolet Express 3500 Knock Sensor

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2008 Chevrolet Express 3500 Knock Sensor Parts and Q&A

Q: How to replace the Knock Sensor (KS) on 2008 Chevrolet Express 3500?
A: To replace the knock sensor (KS), first remove the intake manifold, then detach the KS wiring harness assembly and remove the KS. For installation, follow the fastener notice, install the KS and torque the sensor, then reconnect the KS wiring harness assembly and reinstall the intake manifold.