in the gas tank
rear drivers side engine block
The only 'gas float' on a 2000 Astro van is part of the fuel level sending unit, located inside of the fuel tank.
where are the temperature sending unit located on a 1990 Chevy engine 5.7
connected to thermostat housing
The 1995 Chevrolet Astro and coolant temperature sensor can be found on the front of the engine. The coolant temperature sensor will be a few inches above the thermostat housing.
It should be located on the front of the water pump.
We need to know what sending unit you are asking about, there are several.
At the rear of the engine next to the distributor.
The coolant temp sensor will be located very close to the thermostst housing.
The 4.3 temp sending unit for the gauge is located in the drivers side head between spark plugs 3 & 5.
A