2008 GMC Sierra starts, runs 30 seconds, dies
could be the alternator, or battery
justme4now, I am sorry to hear you are having this concern. If you plan on having your GMC dealership look into this for you, please do not hesitate to reach out to us. You can email us at firstname.lastname@example.org. Please be sure to include your name, VIN, address, phone number, and dealership. Erica Tiffany GM Customer Care
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