1990 Chevrolet G Series Van (G20) Q&A

1990 Chevrolet G Series Van (G20) Question: I am trying to locate the Coolant Temp Sensor (ECU) 1989 G20

Shop tells me the coolant temp sensor voltage =0, and the thermostat is stuck open. I believe the thermostat is located on the engine block @ radiator return, but cannot find the coolant temp sensor. Can someone describe where to find it? -
Answer 1
its right next to the thermostat housing. -