Where is the knock sensor located on 2011 gmc terrain 2.4 liter

SOURCE: 98 subaru impreza knock sensor

at the top of the block under the plenum runners.
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SOURCE: knock sensor location

It's under the intake manifold. To access it you have to remove the manifold and injection rail.

SOURCE: Where is the location of the knock sensor for a 2005 HD 2500 6.0

HAS TWO KNOCK SENSORS they are both under intake in valley of engine. remove intake and will see two black grommets they are under those best to replace both at same time

SOURCE: knock sensor location

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.

SOURCE: where is the knock sensor located on 1992 chevy 5.7 liter engine

it is on the side of the engine block next to the starter