Plug wire harness part - Chevy Impala SS Forum
 
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post #1 of 6 (permalink) Old 09-27-2018, 08:05 PM Thread Starter
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Plug wire harness part

I am putting an engine together and am wondering how this part is attached.
I think it goes on the back of the block for the #7 plug wire but not sure exactly how:

The manual diagrams are a bit unclear, and wondering if there might be more than one method for running that back wire.
I have a couple of the support channels, and one has a tab on the end as per the manual, and another does not. I'm wondering if that one came on the L99?

If anyone has a photo of the area around a stock #7 plug wire that would be great!
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post #2 of 6 (permalink) Old 09-28-2018, 08:30 AM
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That bracket isn't for the plug wires, it's for the o2 sensor wiring.
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post #3 of 6 (permalink) Old 09-28-2018, 09:42 AM Thread Starter
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ok great thanks - I 'll check out the manual for more info on that
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post #4 of 6 (permalink) Old 09-28-2018, 10:22 AM
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Bolts to the side of the block by the knock sensor and the o2 sensor plug is held in place by the little gray piece still attached to the bracket.
The upper part with the hexagon is for another plastic wiring retainer.

@ least that what the part looks like to me...
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post #5 of 6 (permalink) Old 09-28-2018, 01:29 PM Thread Starter
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Awesome thanks.
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post #6 of 6 (permalink) Old 10-02-2018, 08:51 PM Thread Starter
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I found a good pic of this on page 8A-201-50 of the FSM.
One of mine looks like this:


So I need to replace the heat shielding.
Was thinking about using some muffler tape, which I have, and maybe a patch of header wrap or something else, not sure what. Which I don't have...
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