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Old 09-13-2015, 03:52 PM   #1
saulgoode
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2006 Silverado spark plug change

Hello folks!!

This weekend I decided to switch out my long neglected spark plugs and wires. I went with AC Delco factory replacements.

I am embarrassed to admit, but I have 195,000 on the original factory wires and plugs

I think they were due for a change.

Can anyone take a look at the pic and comet if this is typical of an old plug or is there something with the coloration I should be concerned about?

Before I changed the plugs there was definite sluggish performance and upon crank up the RPM would spike just a little then settle down (a brief 500rmp spike). After the change out there is noticeable pep and uniform RPMs. I am skeptical but could the replacements cause this?

Also, the old wires were shot, about half pulled apart in my hands as I tried to remove them.

Any feedback appreciated!
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Old 09-14-2015, 12:22 PM   #2
truckdude239
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Re: 2006 Silverado spark plug change

Looks fine its amazing what a basic tune up will do
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Old 09-16-2015, 06:47 AM   #3
68C15
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Re: 2006 Silverado spark plug change

and all your coils are fine yet?
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Old 09-23-2015, 11:57 PM   #4
saulgoode
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Re: 2006 Silverado spark plug change

I have not had any coil issues so far….
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Old 09-24-2015, 06:22 AM   #5
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Re: 2006 Silverado spark plug change

oh, it looks better now and I'm not so concerned. I was looking at it before on my phone and couldn't see the pointed tip.
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Old 09-24-2015, 08:39 AM   #6
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Re: 2006 Silverado spark plug change

I bought a 93 with 15K on it. Plugs had been changed but it had the factory wires. I put new Delcom wires on it and I could tell the difference in the performance before I got out of my driveway!
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