Chevrolet Repair: Oxygen sensor, s10 pickup, oxygen sensor

Question
I have a 2003 S10 pickup truck V6 4.3 liters. The GM garage says the Oxygen Sensor Bank 1 Sensor 1 needs replacing because the Service Engine Light is on.

I bought the part and need to install it. Can you tell me where it is and how to do this.  

Answer
Hello Ramon,
Bank 1 is the exhaust manifold on the side where cyl #1 is, drivers side usually, look on the intake manifold runner.
And sensor 1 is the sensor on that side closest to the engine, in front of the cat converter.
Unscrew it, and screw in the new one.

Van