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Showing results for tags 'GMC 6.2'.
2020 GMC Sierra SLT 6.2 3,500 miles Bought new in January and hasn’t been driven much. I decided last week to take advantage of my free oil change before it’s one year expiration. Dealer changed oil and on the way home the check engine light came on. Code P106dd. Returned truck to dealer and they say bad oil pump. It’s sitting there today with back ordered parts. I’m wondering is this a known problem with GMC 6.2 engine, and if so maybe I should trade .