In a 1992 Chevy G20, the auxiliary coolant temperature switch is typically located near the thermostat housing or on the engine block. It is usually positioned in a location where it can accurately measure the coolant temperature. To find the exact placement, consult the vehicle's service manual or wiring diagram for specific details related to your particular model.
The G20 has two coolant temp sensors, one temp sensor is at the front on the engine, it has two wires and is next to the thermostat housing, this sensor feeds info the the vehicle ECU. The other sensor is one wire feed and situated on the side of the engine (drivers side) this gives info to the temp gauge on the dashboard.
To fix the temp gauge check the temp sending unit first. A bad sending unit is a common problem with the temp system.
yes you can.
Open the hood and it is on the left (passenger) side near the coolant reservoir.
no
G20 is a 3/4 ton and a G30 IS A 1 TON
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The 1990 Chevy G20 has a 5.7L Small block 350 v8. So It has 8 cylinders :)
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