I have an 89 s10 with a 2.8 V6. It gets about 22 city, 25 highway.
fuel pump is bad
$25 or so
Approximately 25...
It is under the hood on the drivers side. The Fuel Pump fuse and Relay are located in that fuse block. The fuel pump fuse is # 20 and the relay is located below fuse # 25. The ECU fuse is # 56 which also controls the fuel pump.
Possible fuel filter, fuel pump sock fuel pump, Ignition module are the tops off the top of my head.
could be out of gas, maybe a blockage in the fuel line, are the injector getting power??? is there enough presure from the fuel pump it needs to be a minimum of 25 psi just to open the injectors , and the fuel rail could havea blockage as well
have changed both fuel pump andfilter and have no fuel persure How about checking the fuel pump relay and fuse to be sure they are both getting 12 volts. Fuse #1 is 25 amps on the 740 and controls the pumps. The fuel pump relay is in the second row on the left side of the relay rack, the big white one. My advice: Keep spares on all relays and fuses.
The fuel pump relay is located in the rear fuse block. Open the trunk and look in the drivers side rear quarter area, the rear fuse block may be behind a panel. The relay would be number 37 and the fuel pump fuse is number 25.
In the Power Distribution Box in your engine compartment ( PD BOX is " live " ) Relay # 29 is the fuel pump relay ( it's beside relay # 25 which is the A/C clutch relay )
1985 plus 25 equals 2010
An 1985 model, 25 hp Mercury outboard requires a 50:1 fuel, to 2 cycle oil ratio.