Where is the voltage regulator located on a 2003 Chevy Silverado 1500 4.8 L vortec 2wd?

The voltage regulator on a 2003 Chevy Silverado 1500 4.8L Vortec 2WD is integrated into the alternator. You won't find a separate component for the regulator, as it's built into the alternator itself.

To access the alternator, you'll need to remove the serpentine belt.

Here's a general idea of the location:

* On the passenger side of the engine: The alternator is usually mounted on the passenger side of the engine, near the front.

* Below the serpentine belt: It's located below the serpentine belt, attached to the engine block.

Important Note: This information is a general guide and may vary slightly depending on the specific configuration of your vehicle. It's always best to refer to a repair manual specific to your 2003 Chevy Silverado 1500 4.8L Vortec 2WD for accurate details on the location and removal of the alternator.