1. Locate the thermostat housing. The thermostat housing is typically a cylindrical metal housing located on the front of the engine block, near the top. It may have a hose connected to it.
2. The thermostat is located inside the thermostat housing. To access the thermostat, you will need to remove the housing by removing the bolts or clamps holding it in place.
3. Once the housing is removed, you will see the thermostat. The thermostat is a wax pellet-filled metal valve that opens and closes to regulate the flow of coolant through the engine.
Note: It's recommended that you follow your vehicle's service manual or consult with a qualified mechanic for accurate and detailed instructions on how to locate and service the thermostat on a Chevy G30 motor.
