Is ignition coil pack part of the engine,powertrain?

What is your question?

Coil pack replacement needed at 49k? Dealership and GMC say not covered under any warrr. Isn't that part of the engine so powertrain warranty should cover itsince hood for up to 70,000 miles? Charged me$612 for a cail pack replacement

What makes this problem better or worse?

Accellerating

How long has your 2017 Buick Encore had this problem?

Fixed now