I have a 2.5 Goodman Gas Pack. We have just replaced the compressor and had the coils cleaned but it still has not helped with cooling our house down. There is cool air bloing out of the vents but it has not force behind it. We have 1,300 sq ft home and we checked the blower and it does not have a speed but there was a plastic bag fan when we checked. So I was wondering do we just replace the blower motor / the whole blower.

Unless the blower is bad/rusted,you shouldn`t need to replace