Where is the cooling sending unit on a 2000 Chevy s10?

The cooling system sending unit on a 2000 Chevy S10 is typically located on the passenger side of the engine block, near the thermostat housing. However, there might be *two* sending units: one for the gauge and another for the computer (for the coolant temperature sensor).

To be certain, you'll need to:

1. Consult your vehicle's repair manual: This is the most reliable source. The manual will have diagrams showing the exact location and appearance of each sensor.

2. Look closely at the engine: The sending units are usually cylindrical and have one or more wires connected. They are often located near the thermostat housing or on a coolant hose. Look for sensors that fit this description near the passenger side of the engine block.

3. Use an online parts diagram: Many online auto parts stores (like AutoZone, Advance Auto Parts, etc.) allow you to enter your vehicle's year, make, and model to see diagrams of its parts. This will help you visually locate the sending unit(s).

Because there can be slight variations depending on the engine (4.3L V6, 2.2L 4-cylinder, etc.), using a repair manual or online parts diagram specific to your S10's engine is crucial for accurate identification.