On a 2000 Chevy Tahoe with the 5.3L engine, the crankshaft position sensor (CKP sensor) is located on the passenger side of the engine block, near the bellhousing (where the transmission connects to the engine). It's usually near the oil pan, but its precise location might vary slightly depending on specific engine configuration. You'll likely find it pointing towards the transmission.
To be certain, you should consult a repair manual specific to your year and engine. A diagram will show its exact location and aid in identification. There are also many online resources with photos and videos that can help pinpoint it. Be aware that accessing it may require removing some components to get a clear view.
