Location of knock sensor on 2004 chevy tahoe - 2004 Chevrolet Tahoe

My database showed lower right rear of engine block. If starter motor is there you may have to drop it, to get at the sensor. I can't see anything from here.

Speed sensor for the ABS system or for the speedometer?

If the speedometer and it is four wheel drive than the speed sensor will be in the rear housing of the transfer case.

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The sensor is in the side of the transmission where the speedo cable once was.

When faceing the enigine from the front its in the vart back behind the distuboer shaft almost touching the fire wall at a 2 oclock pisition on the right hand side. It threads into the engine block and is a vary important part because it helps to control the engine timeing

Either on the passenger side of the engine, below the second exhaust port.Or underneath the intake manifold.

remove the intake manifold ,remove radiator ,remove radiator intake and outake housing, remove fan ,remove all belts: power steering, alternator and if you have a/c, remove harmonic balancer ,remove timing belt covers, remove timing belt remove intake housinng once you have remove all the above, your freaken engine will look naked, you can see the location of the knock sensor is locate in the engine valley

common problem. replce the gas cap first easy and cheap. if you drive where it is wet alot and or you get pine needles on your truck the knock sensor rust. it is under the intake manifold. not an easy job but can be done in 4 hours. replace both as a set.

Knock sensor can be found on top of the engine block, there are two you ´d have to remove the intake manifold to get to them,

dear sir, should be on trans crossmember on drivers side look at fuel lines the sensor has fuel that goes thue it and one wire connector with four wires in it .....good luck

Unfortunately, the knock sensor is located UNDER the intake. You have to pull the intake off. I had a mechanic do mine. He said its best to replace both because they both corrode. (2 sensors, intake gasket, labor ($250)