In the throttle body.
its part of the fuel rail and has vaccume line connected to it
Remove the air cleaner and look at the top rear of the Throttle body and you will see it. It is round in shape and is bolted to the top of the throttle body.
Right behind the distributor and it is tough to get to.
It's inline at the carburetor.
The radiator drain plug on a 1989 Chevy C1500 Silverado is on the bottom of the radiator.
no.
That is the round thing on the top rear of the TBI. The thing that looks like a carburetor.
GM. relocated the fuel filter in 2004, and put it inside of the gas tank.
It is located behind the distributor.
Under the upper intake manifold, attached to the bank of injector poppets, aka "the spider".
how to release serpentine belt tensioner on 1991 C1500 Chevy Silverado?
You have to remove the gas tank, Then remove the sending unit in the top of the tank. That will be were the fuel filter is located.