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Read my spark plugs

djc7011
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2 years 2 weeks 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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2 years 2 weeks 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.

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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djc7011
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2 years 2 weeks ago - 2 years 2 weeks 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: 2 years 2 weeks ago by djc7011.

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Lupe
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2 years 2 weeks 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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