How could you tell if a fuel pump went bad on a 95 Chevy blazer?

Answer 1

Blazer will not start, no pump noise from the rear of the fuel tank Look under the hood , drivers side near fender there is a connection where you can run a jumper from the positive side of the battery that will supply power directly to the pump . you should here it running. remember there is only one wire red in color with a female connector. Also check the fuse block driver side of dashboard it can only be opened when the driverside door is open. It should be a 10 amp fuse , look on the back of the cover it will show the location number. I am changing one now and i had troubleshoot every thing. my pump would run but only put out 45 to 50 psi. of fuel pressure and these type of injection systems need 58 to 63 psi. of fuel pressure to start the engine.