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Thread: Won't start after wired up

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  1. #1
    Yeah, we cut it to use as the wire for the nelson harness solenoid wire....


    hes gonna reconnect it see if it will fire.


    Why would the transmission position not be illuminated in the gauge panel, any thoughts on that?
    LSX conversions, so easy a caveman can do it.

  2. #2
    Join Date
    Oct 2003
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    473

    Lots Of Grounds...

    Ground the battery to the block, Battery to chassis, block to the chassis, power center to the block, etc. Grounds are critical to all LS engine functions. Solid blacks are battery grounds, black w/white tracers are GM chassis grounds. Nuetral safety switch wire to transmission is not needed to run.

  3. #3
    Join Date
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    thanks guys. I'll double check and triple check all my grounds.

    I know several other people have had issues with the dash indicator not showing which gear, has anyone came up with a solution? I've tried the old gear selector with no change.
    1996 GMC extended cab, 2003 5.3/auto

  4. #4
    Join Date
    Sep 2007
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    Texas
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    the Gauge indicator is powered through the neutral safety switch.
    It tells you if your in P R N D 3 2 1
    Make sure thats plugged in, for some reason on mine N D 2 1 don't light up.
    Good luck..

    here is a pic of the switch, it bolts to the tranny.

  5. #5
    Join Date
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    Didn't I just say that? LOL Good pic though............


    97 GMC, 2002 LS6.

    1991 GMC Syclone #1428

  6. #6
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    Quote Originally Posted by NITROUS View Post
    Didn't I just say that? LOL Good pic though............
    yea you did, i wrote that a long time ago, left my computer and came back noticing i forgot to post it

  7. #7
    Join Date
    May 2004
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    I'm just messin with you bro........................... BTW, this is RHB hugging you, not me......... I haven't messed with him lately either.
    Last edited by NITROUS; 08-07-2008 at 10:36 PM.


    97 GMC, 2002 LS6.

    1991 GMC Syclone #1428

  8. #8
    Join Date
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    Quote Originally Posted by NITROUS View Post
    I'm just messin with you bro........................... BTW, this is RHB hugging you, not me......... I haven't messed with him lately either.
    Dont taze me bro! lol i know its fun to mess around now go make my headers

  9. #9
    Quote Originally Posted by ChevyLee View Post
    the Gauge indicator is powered through the neutral safety switch.

    Not only is it plugged into the nelson harness, he tried plugging it to the old harness, then he took the old part off the original transmission and plugged it into the nelson harness, then into the stock harness....nada.


    So it would seem there is a problem elsewhere.


    Something else I noticed, the solenoid wire either from the stock harness or the nelson harness, neither get 12v with the key all the way forward (or to engage the starter)......its gonna end up being something simple thats gonna pis me off.
    LSX conversions, so easy a caveman can do it.

  10. #10
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    Like maybe the power lead that runs to the starter relay has been taken off or the fuse popped?
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

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