98 gmc 350 vortes new fuel pump.truck will start .when you shut it off should it have fuel pressure on the fuel rail mien dont it bleeds off as soon as you turn the key off what could this be

Asked by Feb 09, 2017 at 10:49 PM about the 1998 GMC Sierra 1500 C1500 SLE Extended Cab Stepside SB

Question type: Maintenance & Repair

is there fuel pressure at the rail when you shut the truck off.my truck does not
why would it bleed off so fast??  350 vortec.

1 Answer

76,355

Yes there would be fuel pressure at the rail when you turn it off. You must have a hard starting condition or black smoke and a check engine light on? Anyway, it is because your spider injection is leaking. It is recommended to replace the whole spider injection assembly.

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