I had a new engine installed by mazda about three months ago and I noticed the air wouldnt turn on at all. When I switch it on no air whatsoever is being blown out of the vents. I have recharged the r-134 and nothing! What could be causing the problem?!

 

Use your hand to beat the fan motor, it's right under the glove box.
A tap usually makes the air start blowing.

 

I have tried hitting it but it didnt work... I think I probably need a new motor

 

 

what do you mean ****??

 

You can unplug it and plug it back in. Dont know why they would have unplugged it, but its worth a shot.

You can also use a meter to see if there is any current running on the terminals ensuring that the connection is hot (live).

You can get a ohm meter or tester at an autoshop (Autozone etc) for less than 15 bucks.