On a 1996 Chevy Tahoe with the 5.7L Vortec engine, the camshaft position sensor (CMP sensor) is typically located on the
passenger side (right side) of the engine, near the front of the cylinder head. It's usually mounted on the cylinder head itself, fairly close to the distributor (if equipped; some 1996 models may have distributorless ignition). You might need to remove some plastic covers or parts to see it clearly.
It's a good idea to consult a repair manual specific to your year and engine for a precise location and diagrams. A picture search online for "1996 Chevy Tahoe 5.7L camshaft position sensor location" might also be helpful.
