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Old Apr 9, 2020 | 04:28 PM
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Default Spark plug

I had a bad plug on my c7 2017 corvette stingray...it was after 3 years but the powertrain warrenty was in effect...I read what was covered but saw just about everything but a mention on spark plugs...only had 10,000 miles on mine...was charged $100 to replace and diagnose...So are the plugs covered? I feel they shoulduld be but???
thanks....

Last edited by sanman55; Apr 9, 2020 at 04:28 PM.
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Old Apr 9, 2020 | 04:54 PM
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In my opinion spark plugs should be considered a wear item and not replaceable under warranty. And I am pretty sure the GM feels the same way.
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Old Apr 9, 2020 | 05:48 PM
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You should have a warranty booklet that will shed light on this, rather than a bunch of strangers on the internet.

You also have an emissions warranty...seems like plugs would be in there.
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Old Apr 9, 2020 | 08:08 PM
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"...strangers on the internet" YES, we are!!!
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Old Apr 9, 2020 | 08:37 PM
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Just like brakes they are a wear item

Dave
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Old Apr 9, 2020 | 08:44 PM
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Lol!

I have no idea to the answer for the question, but I doubt it - it's a consumable / wear item, like tires
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Old Apr 9, 2020 | 08:48 PM
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My thought is spark plugs are a wear item and therefore not covered under a warranty. But I am not the one making the decision on coverage.
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Old Apr 10, 2020 | 08:04 AM
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A clutch is a wear item. Brakes and windshield wipers are wear items. A bad spark plug at 10k miles is not a wear item but bad manufacturing. That should be covered. If not, I would fight it.
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Old Apr 10, 2020 | 09:35 AM
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I know its a wear item but just 10.000 miles....
I did ck. emmisions warenty and it is covered but just for 2 years...now if it was calfornia em. it would be covered.
Just curious....thanks for the imput and yes we are
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Old Apr 10, 2020 | 09:43 AM
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I did mention in a earlier post that ever now and then I get a HUGE puff of black smoke out of the pipes...I am working on getting it on video but it is so random its hard to catch...It happens at different times....sometimes when i start it but mainly while driving....Sometimes it will stay black for maybe 10 sec. then stops...Runs great, idles great...Pipes get extra black and i clean them out...Really weird, the dealer has no idea whats happening..No error message or anything.I try to step on her every now and then up to about 100 mph...Millage is 11,000...No real over fill on oil.... AT least i still have 2 years on the powertrain warranty...
It might have been happening a long time?? I just happen to look out the rear mirror one day and notice it....Bugs me. I have done research on web but no help....Not blue or white smoke ...just solid black....and then its just fine...

Last edited by sanman55; Apr 10, 2020 at 09:45 AM.
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