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How do you replace a knock sensor on a 2003 Chevy silverado 4.8?
Wiki User
∙ 14y ago
The Knock sensor is located on the lower side of the engine near the oil pan rail and goes into water. Make sure your engine is cool before you start the job. The best way is to drain all of the coolant out of the engine first, then disconnect the wire, then remove the knock sensor. WARNING--antifreeze will come pouring out when you take the knock sensor our so WEAR SAFETY GOGGLES to protect your eyes.
Do not use any sealer other that the sealer that is on the new sensor.
Wiki User
∙ 14y ago
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