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Old Jan 27, 2019 | 02:46 PM
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Default 2007, 63k

changed out today, (yes it was a 2+ hour bitch) last 2 times run was through warm up in the garage, coloring seems off


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Old Jan 28, 2019 | 10:35 AM
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Google "Spark Plug Visual diagnosis", or click "YouTube".
What spark plugs did you use as replacements?
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Old Jan 28, 2019 | 10:45 AM
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same (oem)
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Old Jan 28, 2019 | 11:01 AM
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The reason I ask is the new OEM ACDelco are 41-110 (12680072).
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Old Jan 28, 2019 | 11:06 AM
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Acdelco41162
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Old Jan 28, 2019 | 01:19 PM
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Per ACDelco 41-110 was replaced by 41-162. Name change only, no difference in plug.
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Old Jan 28, 2019 | 01:37 PM
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Does look rich.
But, as I understand, OP states last time the engine was run it was idling for extended period?

FWIW Replacing at 63K is not a bad thing, can research Utube etal for gap/ puck wear/ etc. and
if the engine is stock, I'd again replace with OEM spec.
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Old Jan 28, 2019 | 01:50 PM
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12 years, I was worried about thread seizing, they have some type of anti-seize on them, so that was easy.

Getting the plug wires off the plugs was very difficult my hands look like I got in a fight with a cheese grater.

The have plenty of dielectric grease on them now
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Old Jan 28, 2019 | 02:43 PM
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Curious, do you have an modifications?

Do you use any fuel additives like Techron or octane boosters?

They look on the rich side to me as well.

Mine at ~120k

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Old Jan 28, 2019 | 07:05 PM
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Curious, do you have any modifications?
Corsa axle back

Do you use any fuel additives like Techron or octane boosters?
it has a bunch a stay-bil in it

They look on the rich side to me as well.

once spring rolls around and I can actually drive it, I will pull an easy one and re-check after a couple tanks of gas
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Old Jan 29, 2019 | 10:09 AM
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Originally Posted by rudutch
Curious, do you have any modifications?
Corsa axle back

Do you use any fuel additives like Techron or octane boosters?
it has a bunch a stay-bil in it

They look on the rich side to me as well.

once spring rolls around and I can actually drive it, I will pull an easy one and re-check after a couple tanks of gas
Corsa axle back
This *could* be causing the richer mixture but I wouldn't think so with just an axle back. An air intake maybe.

it has a bunch a stay-bil in it
This is probably why they have that reddish color to them, no biggie.

I'm also a little concerned about how much oil is on the threads. What are your driving habbits like? May be in the need for an "Italian Tune-Up" once in a while to blow some stuff out of there.
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