My 2004 GMC 2500 Sierra starting turning off at low idle and the check engine light came on. I have 185,000 miles on it. Why would I need a new engine?

Asked by Aug 10, 2017 at 12:15 AM about the 2004 GMC Sierra 2500HD 4 Dr SLE 4WD Extended Cab LB HD

Question type: Maintenance & Repair

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