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What is causing engine to crack spark plugs
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Engine sputter after heating up, keeps cracking spark plugs, losses power and engine light comes on. Replace spark plug 1 and runs good for about 2 weeks and it happens again
RepairPal Certified shops can diagnose and repair your 2008 GMC Sierra 1500. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
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