Harsh shift or shift concerns on a 2018 GMC Sierra check this video out before you change fluid

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This video will help you with servicing your transmission and also gives you a way to help with shift concerns and helps you figure out if you have a 6 speed automatic or an 8 speed #mechanic #automotive #automobile

Symptoms and trouble shooting #automotive #mechanic #auto
harsh downshift
low throttle harsh shifts
service fill
fluid type
fluid complete refill
transmission type

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