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dash lights giving a light show

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Old 07-06-2012, 05:37 PM
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Exclamation dash lights giving a light show

help I just installed a 525HP LS3 in my 2001 WS6 hooked power to it and the dash lights went crazzzzy,I don't know much about electrical stuff so I am stumped any help would be appreciated
Old 07-07-2012, 09:35 AM
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Check the battery leads to the alternator and at the fuse box. If they are loose it will cause this.
Old 07-07-2012, 10:03 AM
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i had a loose alternator ground in my aurora and it did the exact same thing. speedo and tach jumped like a bouncy ball too.




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