In the font
It's located in the distributor under the rotor.
It is on the lower right hand side of the throttle body. There are 2 sensor on that side , it is the lower one.
That engine has 2 of them and there underneith the intake manifold. You will have to remove the intake to get to them.
The 4.9 vortec means that it is a 4.9 liter v8 probably.
2003 chevy tahoe knock sensor
Which engine? 5.7liter vortec
The TSP sensor on your 2003 Chevy Tahoe is located on the back of the transmission.
5.7L V8 350 Vortec.
That would be the 5.7L / 350 Vortec.
The 2001 Chevy Tahoe 5.3 liter engine air temperature sensor can be found on the air hose. The sensor will be between the air filter box and the top of the engine.
The Intake Air Temperature Sensor is loctaed in the side of the Air Filter Case, look for a wired connector attached to it.
It is the bottom sensor on the right side of the throttle plate housing. That is the part that all the duct work comes from the air filter box and hooks to the engine is.