Find cylinder one, usually on the driver side. That is Bank one side, then go to the second O2 sensor, which will be the one after the cat converter.
There are several and they are all located on the exhaust system.
The 1995 Chevy Silverado coolant sensor is located on the front of the engine. The coolant sensor will be a few inches above the thermostat housing.
On the 1999 Chevy Silverado Z71 4WD, the speed sensor is part of a module. It is located next to the transmission housing.
On the exhaust system before the catalytic converter. It looks similar to a spark plug with a wire out the top.
The intake temperature sensor is located on the side of the air filter case on a 2003 Chevy Silverado 4.3 1500. It is on the top of the engine.
The vehicle speed sensor, on your 1994 Chevrolet Silverado pickup truck, is located on the back of the transmission. The speed sensor is labeled as such.
The speed sensor on a Chevy Silverado is located on the tailshaft of the transmission. To remove it, unplug the wire hardness, unscrew the bolt holding it in place, and pull it out.
where is the O2 sensor on a 2002 chevy trailblazer
NO!!!
right in front of the catalitic converter
Located behind the starter. Have to take starter off to get to it.
under he intake manifold