Where is the camshaft position sensor on a 09 GMC Sierra v6

The camshaft sensor is underneath the distributor cap. Follow the wires from spark plug goes right to cap. You will need a 10 or 15 torx screw driver which well remove the cap and the camshaft sensor. Screws to camshaft sensor are really tight so make sure you have a good torx screw driver and the right size very easy to strip screw head.

Sorry about that the information I gave you was for a 8 cylinder looks like the 6 cylinder is in a different area. Just did one on a 8 cylinder that is why I know where that one is located thought 6 was the same but it is not.

Google your question there may be a video on utube showing you the location of camshaft sensor.

Thank you so much! I've been doing that for a couple of weeks I appreciated your help.

Found a video on utube on where the camshaft sensor is on your vehicle and it is where I suggested in my first answer under the distributor cap.

I have a 2008 silverado 4.3 the eighth letter in the Vin is an X. The camshaft sensor is located behind the water pump. My ? is do you have to remove the water pump to replace the sensor?