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Spark plug wiring diagram


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#1 JF1957

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Posted 17 November 2006 - 06:52 PM

Hi, I need help. I Change spark plug today on my burb 1999 2500 5.7 liter and I think I interChange wiring. Does anybody Can help me with a wiring diagram so I Can see what's wrong. I don't have a work shop manuel so I need preCision here like "Front of the truCk left side plug 1, 2, 3, 4 go's on 2, 3, 1, 4 Cap distributor"
Thanks all
Bye
'04 Yukon XL 2500 4X4 8.1L GT4, G80

#2 mcreyaufmiller

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Posted 17 November 2006 - 07:56 PM

The cylinders start on the passengers side front:

2, 4, 6, 8

Front Drivers side:

1, 3, 5, 7

the little numbers on the cap are for the cly. numbers.
Mike C.

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#3 98silvz71

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Posted 20 March 2007 - 09:43 PM

You did make sure to get platinum plugs right? Copper core ones didn't work very well with my 350. It ran but the resistance was higher so it burned up my old stock wires. Had to change them out and got some Bosch Platinums +2, they work pretty good but don't skimp on the wires. Don't get the "Omni Spark" from Oreillys cause they are worst than the old worn out stock wires.

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#4 vzfox

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Posted 21 March 2007 - 05:50 PM

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