i have a 1989 g20 w/ 5.7 engine 33 gallon tank
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.
The 1990 Chevy G20 has a 5.7L Small block 350 v8. So It has 8 cylinders :)
In the fuel tank.
Not necessarily. You may have a loose connection or bad ground.
standard was 22 but Chevy had an optional 33 gallon tank
You need to lower the fuel tank to get at it.
In the gas tank. You need to take the tank down since it's on the top of the tank.
Yes it is 350 TBI is injection
Your fuel pump is actually an electronic pump which is located inside your fuel tank because that year was fuel injected. Hope your tank isn't too full because you will have to take it out of the vehicle to access it.
inside the gas tank and it comes out the top.
I don't think there were any carburetors on the 1995 G20's so it is an electrical fuel pump inside the tank.
Should be under the drivers seat its not under any of the seats