To be absolutely sure, you should:
* Consult your vehicle's repair manual: This will provide diagrams and precise location information specific to your Tahoe's engine.
* Use an online parts diagram: Many auto parts websites (like AutoZone, Advance Auto Parts, etc.) allow you to look up diagrams for your specific year, make, model, and engine. These diagrams often show the location of the CKP sensor.
Remember to be careful when working around the engine compartment, as there are hot parts and moving components.