OK fuel system question 1988 blazer
 

Im working on my cousins 1988 k5 blazer 4x4 it has the tbi set up and she not gettting fuel to the system. My first thought it fuel pump in the tank, which is still an option becasue i can not hear it running. UN screwed fuel turn truck on and got no fuel. But im looking for one thing before i go dropping this tank.. Where is the fuel pump relay (autozone sells it but i have no idea where its sitting. also if there is a fuse for the pump anywhere.

IM at a loss all my trucks are mechanical and only had one like this and never had a issue from it any help would be great thanks.

Re: OK fuel system question 1988 blazer
 

The fuel pump relay is mounted high on the firewall to the right of retractable light, just left (passenger side) of the center of engine compartment. The tranny dipstick is just below the relay. If your vehicle has a THM 400 then there will be 2 relays located there, one is the downshift relay and the other is the fuel pump relay.

Hope that helps.