GMC fuel relay

usasoldierusasoldier Member Posts: 3
edited August 2015 in GMC
I am havin fuel pump relay problems. I have revamped entire fuel system. Cleaned tank, replaced fuel pump and filter. Ran great for a week. Relay went bad, I replaced. Ran fine for ten min. No fuel. Relay hot to the touch. No fuses blown. Help please.
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Answers

  • cmhj2000cmhj2000 Member Posts: 381
    GMC what year, model etc etc etc
  • usasoldierusasoldier Member Posts: 3
    My bad , that's pretty important info to forget in a post. Lol

    88 gmc v1500 4x4 5.7 TBI
    the vehicle left me stranded yesterday. I returned to it this morning and it fired right up. In going to let it run for a while and see. It would appear my problem is the relay overheats.

  • usasoldierusasoldier Member Posts: 3
    Okl, found a ground issue. Fixed it. Ran great all day. Let it sit a couple hours and went to start it. Nothing. Tried switching relays, nothing. Still no fuses blown and no fuel.
  • gotsmokegotsmoke Member Posts: 1
    edited November 2016
    93 gmc 1500 5.7 tbi gets fuel and spark but won't start
  • Mr_ShiftrightMr_Shiftright Member Posts: 64,481
    edited November 2016
    Have you checked injector pulse? If you "checked" the fuel only by releasing pressure on the fuel rail, that's not thorough enough.
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