The A/C Blower Fan wouldn't work at first unless you hit the Fan, then it will work fine. Gradually, it became that you have to hit it several times for it to work, now you can beat it with a hammer, still it wouldn't work.
What do I need to replace for it to work, knowing that summer is hear.
I thought of buying a new fan and motor, but hate to play a guessing game, because it becomes a costly process.

 

You definitely need a new blower motor. Rock Auto has them from $35 to $65.