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Knock Sensor In 5.3 Chev

Walleyehooker
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Walleyehooker Veteran

Walleyehooker

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Ive got a knock sensor code coming up on my 2002 Chev Suburban so I havnt been driving it as not to do more damage to engine. Waiting for warmer weather to tear into it. Ordered 2 of them as might as well change both seeing have to remove intake to get to them. My question is should I change intake gaskets or anything else when I have intake off. Has about 160K miles on it.

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Jeremy airjer W Grand Master

Jeremy airjer W

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Replacing the plenum gaskets is a good idea. There really isn't anything else under the plenum. Usually the holes that the sensors sit in fill up with water. Would not be a bad idea to replace the sub-harness for the knock sensors as well.

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