What is your question?
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What is your question?
Truck hesitates going in to high gear around 45 mph. Either its losing power or its missing.
How long has your 2013 GMC Sierra 1500 had this problem?
2 days
1 Reply
I'm guessing it has an engine lamp on also. Since there are many possible reasons for the hesitation it would need diagnosis by a mechanic. Stored trouble codes are clues so don't clear anything until a repair is made.