Under the intake manifold. Make sure you get the harness for the knock sensors. and clean out all of the rust and junk you're going to find donw in the holes before and after you replace the sensors.
Hi
Thanks for using FixYa. The two knock sensors V-6 are located in the rear
of the engine block below distributor and oil releasing unit and on the V-8 these
are located under intake manifold. You’ll need to remove the manifold (intake)
to get to sensors.
Please do rate the solution and revert for further
assistance.
Thanks
Rylee
I have a 2001 Chevy Silverado 1500. The V-8 has 2 knock sensors located in the center of the engine block, under the intake manifold! Hard to get to. The V-6 has only one and is located on the rear of the engine block below the distributor and oil pressure sending unit.
Good luck with this, Shastalaker7
There are two knock sensors on a 2001 chevy silverado. You have to remove the intake manifold, because both of them are located under it. it is best to replace both knock sensors at one time, and you will need an intake manifold gasket too.
SOURCE: looking for the location of the crank position
Crank sensor; right (pass.) side of block above the starter. You may have to remove the starter to remove the crank sensor.
Knock sensor: There may be 2, a front and a rear. Both would be UNDER the intake manifold on top of the engine block one behind the other about 8 inches or so apart. The manifold and associated item may or may not need to be removed to access the sensors.
SOURCE: knock sensor on 2001 chevy silverado
on the 4.3l version the knock sensor is on the back left side of the engine right by the bell housing. on the bigger engines they are below the intake manifold in the engine valley
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