After the catalytic converter.
The TSP sensor on your 2003 Chevy Tahoe is located on the back of the transmission.
The speedometer sensor on a 2003 Chevy Tahoe Z71 is located in the engine compartment. It is on the transfer case.
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 2003 Trailblazer speed sensor is mounted on the transmission. It is on the passenger side of the output end.
The coolant temp sensor on a 2003 Chevy S10 V6 is located on the front of the intake manifold. To replace simply unscrew the old sensor and screw on the new one.
How do you unplug an oxygen sensor on a 2003 Chevy Cavalier
Same as the Tahoe behind the starter
The coolant temp sensor will be located very close to the thermostst housing.
how do you change the knock sensor in a 2003 Chevy silverado 5.3
location for 2003 chevy trailblazer coolant temperature sensor
It is behind the starter, You will have to remove starter to service it,
The crank sensor on a 2003 Chevy Malibu is located on the bottom , right side of the engine. It is positioned near the oil filter and constantly monitors the rotation of the crankshaft.