Where is the cam position sensor on a 1999 Chevy Tahoe?

The camshaft position sensor (CMP sensor) on a 1999 Chevy Tahoe (assuming it has the common 5.7L Vortec engine) is located on the passenger side of the engine, near the front of the engine block, at the top of the cylinder head. It's usually mounted fairly close to the camshaft itself.

However, the exact location can vary slightly depending on the specific engine and configuration. It's generally a relatively accessible sensor.

To be certain, consult a repair manual specific to your 1999 Chevy Tahoe's engine. A Haynes or Chilton manual will have detailed diagrams and photos showing the sensor's location. You can also find diagrams online through sites specializing in automotive repair information (be cautious of the source's reliability).

Looking at pictures of a 1999 Tahoe 5.7L engine online might also help you visually confirm its location once you have a general idea from the repair manual.