Where is low coolant sensor located on 1999 Chevy Monte Carlo 3100?

The low coolant sensor on a 1999 Chevy Monte Carlo 3100 is typically located on the engine block, near the thermostat housing. However, its exact position can vary slightly depending on the engine (3.1L or 3.4L) and specific trim level.

To find it definitively:

1. Consult your vehicle's repair manual: This will provide the most accurate location with diagrams.

2. Look for a small sensor with a single-wire connector near the coolant passages: It's usually a fairly small sensor, sometimes tucked away a bit.

3. Follow the wiring harness: The wire from the sensor will lead to a connector associated with the instrument panel. Tracing the wire back can help locate the sensor itself.

Because accessing this area may require some maneuvering, always let the engine cool completely before attempting to locate the sensor. Use caution when working around hot coolant.