The fuel filter for a 1986 Chevy G20 should be mounted on the frame under the van. The filter is an inline type and should be easy to change.
yes you can.
NO, it has only one fuel pump, and it is mechanical.
I don't know the exact fuel capacity for a 1984 model Chevy. However, the standard tank capacity for a 1995 Chevrolet G20is 22 US Gallons, or 83 Litres.
It is fuel injected.
In the fuel tank.
5200lbs.
The fuel relay on a 1992 Chevy G20 5.7 liter, 350 is under the hood attached to the firewall at the top, just under the wind screen
You need to lower the fuel tank to get at it.
22 & 33
The 1990 G20 Chevrolet Van fuel relay switch is located on the front of the fuel tank. The relay switch is next to the fuel pump.
In the throttle body.