this something i would not do checkout all of the fuses and the fuel pump relay before you do this try this website www.alldatadiy.com to see if they have you truck listed and i also would like to give you this information if you every have any hard to find GM-parts they sells only GM its Scharm auto & truck parts 1-800-292-1032 and they website is www.schramauto.com and i hope i have been some help to you Michigan Man
SOURCE: vacuum line for fuel pressure regulator 98 Tahoe
Was there a hose on the old one? If not, you don't have one. It is most likely your fuel pump if you are not getting fuel.
SOURCE: 1996 chevy tahoe fuel system
i am having the same problem with my 96 pickup i am getting low voltage to my fuel pump i have traced the wires back to the front the purpel wire is the one with low voltage i replaced fuel pump also fuel relay and still have low voltage
SOURCE: no power to fuel pump and the ecmb fuse bows as soon as i put it
Unplug all wires to the distributor, coil, fuel pum and injectors, then see if the fuse blows, if it does, sounds like an ECM failure.
SOURCE: ecm 1 fuse blow when attemping to start vehicle
So as I understand it the fuse only blew after a fuel pump job.
There is a TSB on repeated fuel pump failures with these trucks. The fix is to also replace the harness connector that plugs into the tank harness.
Unplg the harness and inspect it before you turn the key again if you suspect this.
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