Where is the Chevrolet Express 3500 ambient tempERATURE sensor located?

The ambient air temperature sensor on a Chevrolet Express 3500 is typically located within the front bumper assembly, often near the grille. However, the exact location can vary slightly depending on the year and specific model. It's usually a small, black sensor with a single wire connected to it.

To be certain, you'll need to:

* Consult your owner's manual: This is the best resource for the exact location of sensors in your specific vehicle.

* Use a wiring diagram: A wiring diagram will show the sensor's location and its connection to the vehicle's electrical system. You can often find these diagrams online (sometimes for a fee) or at a parts store.

Without the year of your Express 3500, a more precise answer is impossible.