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Read my spark plugs

  • djc7011
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1 year 10 months ago #63966 by djc7011
Read my spark plugs was created by djc7011
2011 GMC Acadia 130k but plugs only have about 70k on them. Does anyone see any issues? #2 was dropped so disregard the closed gap. The only real issue is that P0420 came up twice. Plugs are laid in order 1 thru 6. Maybe the bank 1 cat is starting to fail.
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  • Tyler
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1 year 10 months ago #63972 by Tyler
Replied by Tyler on topic Read my spark plugs
I'm no better at reading spark plugs than I am at tarot cards.
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 But my first thought is that #5 and #6 might have more oil consumption than the others. Based on the amount of buildup and discoloration on the positive electrode.

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1 year 10 months ago - 1 year 10 months ago #63973 by djc7011
Replied by djc7011 on topic Read my spark plugs
I'm hoping those 2 are getting the most from the pcv system but they definitely had some build up. Thanks
Last edit: 1 year 10 months ago by djc7011.

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1 year 10 months ago #63990 by Lupe
Replied by Lupe on topic Read my spark plugs
I would 1 put a top end cleaner 2 week later a cat cleaner 3 replace spark plugs sooner. to try to save cat.
thats what i did and no more cat code . good luck

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