Question about 2004 Chevrolet Silverado

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Knock sensor location

Where is the knock sensor located on 2004 silverado 4wd.5.3 liter

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The knock Sensors are located under the Intake Manifold at the top of your engine. The top will have to be taken off along with the intake manifold. Knock Sensors in past silverados used to have a problem with leaking water that corroded the sensors from washing the engine. Most times when you go to replace the knock sensor you will have to replace both along with the wiring harness that includes the the gaskets the knock sensors are surrounded by. After that you have to check the resistance to make sure you dont have any problems and then reinstall all parts along with a new intake manifold gasket. A good mechanic can do this for you in a day and charge you around $400. If you try to go to some place like a chevy dealer you will pay over $800. This is from experience of just replacing mine 2 weeks ago.

Posted on Mar 10, 2010

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Left bank in between pistons 3 and 5

Posted on Mar 11, 2009

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As I recall, it is on the right or passenger side of the engine block under the exhaust manifoldbut above the oil pan. about the middle of the block. Hope this helps, Merry Christmas!

Posted on Dec 23, 2008

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Aparently they are under the intake manifold

Posted on Jan 27, 2009

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