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84 k5 wont start please help i am a noob

Discussion in 'The Garage' started by DomeD U, Jan 25, 2007.

  1. DomeD U

    DomeD U Registered Member

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    Well i went to give her a tune up and now it won't start. So I put the old coil and cap back on and stillnothing. I am not getting any spark at the plug ( i pulled one back out and held it against the frame and I can get no spark.) The pink wire goes into the cab but I cannot tell where it goes from there nor could I find a blown fuse. Someone please help. I am new to the Blazers but I am not a noob at working under a hood. Also I ran a wire from the hot of my battery to the pink wire to see if it would fire off, and it did not. Please help, where do I look first?
     
  2. chevy wrangler

    chevy wrangler 1/2 ton status

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    HEI or points???
     
  3. DomeD U

    DomeD U Registered Member

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    i think it is HEI, it has the coil in the cap. if that helps
     
  4. chevy wrangler

    chevy wrangler 1/2 ton status

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    its HEI and maybe its just the fuse near the ac-unit. happened to me once on the 74. its a glass fuse on the fire wall
     
  5. chevy wrangler

    chevy wrangler 1/2 ton status

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    did you replace the rotor under the cap??
     
  6. mo

    mo 1/2 ton status

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    ignition module maybe
     
  7. chevy wrangler

    chevy wrangler 1/2 ton status

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    that was my next suggestion,
     
  8. DomeD U

    DomeD U Registered Member

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    is there a way to check it, also I do have power to the pink wire.?. I must have checked it wron before.
     
  9. DomeD U

    DomeD U Registered Member

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    yes
     
  10. Jason4x4

    Jason4x4 1/2 ton status

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    make sure the pink wire is hooked up to the power on the coil and not the tach
     
  11. chevy wrangler

    chevy wrangler 1/2 ton status

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    is it pluged into the "batt" on the cap??
     
  12. chevy wrangler

    chevy wrangler 1/2 ton status

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    beat me to it again!!LOL
     
  13. DomeD U

    DomeD U Registered Member

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    yes it is pluged in correctly
     
  14. DomeD U

    DomeD U Registered Member

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    also when i did the tune up, once i was finished i tried to start it, it started and ran for like 2 seconds and then it died and has not started back up. I put the old cap rotor and coil back on and it still does not run. I double checked the fireing order it is correct. I am not getting any spark
     
  15. lak2004

    lak2004 1/2 ton status

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    Did you take the whole distributor off or loosen the adjustment nut on the block at all? Maybe messed up the timing?
     
  16. DomeD U

    DomeD U Registered Member

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    after it would not start i loosened off the dis nut but I have not moved it, and even if I had moved it, it would stillbe sparking just not at the right time.?.
     
  17. mo

    mo 1/2 ton status

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    i think you can test the module. get a dmm and measure the voltage to the wires that would plug into the module, if there is a little voltage at the wires when you crank it, the i think the module is bad.

    i'm not 100% sure though on that procedure, sorry, memory ain't so good.
     
  18. DomeD U

    DomeD U Registered Member

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    where is the module
     
  19. mo

    mo 1/2 ton status

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  20. DomeD U

    DomeD U Registered Member

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    thanks MO i will try tomorrow. First thing in the morning, why would it quit like that?
     

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