How to service the knock sensor (KS) on 2004 Ford Expedition?

In order to service the knock sensor (KS) start by taking out the intake manifold. Next, make sure to disconnect electrical connector and unscrews the bolts attaching the knock sensor and then remove it. To install, then repeat the steps in reverse to fit the new knock sensor.

OEM 2004 Ford Expedition Knock Sensor

Engine Knock Sensor

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2004 Ford Expedition Knock Sensor Part Number: XL3Z-12A699-AA
$36.93 MSRP: $57.64
You Save: $20.71 (36%)
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Product Specifications
- Other Name: Sensor - Engine Knock; Ignition Knock (Detonation) Sensor
- Base No.: 12A699
- Item Weight: 0.40 Pounds
- Item Dimensions: 6.3 x 2.5 x 2.5 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: XL3Z-12A699-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2004 Ford Expedition Submodels:
- Eddie Bauer, NBX, XLS, XLT, XLT Sport | 8 Cyl 4.6 L GAS, 8 Cyl 5.4 L GAS

2004 Ford Expedition Knock Sensor

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2004 Ford Expedition Knock Sensor Parts Q&A

Q: How to service the knock sensor (KS) on 2004 Ford Expedition?
A: In order to service the knock sensor (KS) start by taking out the intake manifold. Next, make sure to disconnect electrical connector and unscrews the bolts attaching the knock sensor and then remove it. To install, then repeat the steps in reverse to fit the new knock sensor.