New started work caused motor problem

I recently got a new starter and new battery on my car within a few minutes the car started smoking and the car would not start the people that fixed my car towed the car then called me to say the coil burned out and caused the motor to blow. I think it is related to the work that was done with the new starter

First of all, what are you driving? We need to know year, make, model, engine type/size, and transmission type. Any other details you can think of should be included.

Which motor blew? The new starter motor or the car’s engine?

Your answer makes a huge difference.

Who installed the new starter and battery, and why did you need both?