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Old 07-31-2013, 08:31 AM   #1
hotrod_991
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Join Date: Jul 2009
Location: Thibodaux, LA
Posts: 479
Re: 77 c20 electrical issues.

i had same issue with an 86 c10 i was working on. it would spark and smoke misteriously behind the block and by the trans. It was a ground issue. if you do not have a solid body, chassis and engine ground. my truck was basically searching for ground anywere is could find. i cleaned all cables and fixed the grounds.
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1977 c10 under knife for full rebuild, 5.3l 4l60e drive rain swap, replacement frame and green repaint
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