2015 F150 Ignition coil installation problem

I’m not a mechanic and it’s my first time to
change the coil and plug on any vehicle.  

Vehicle: 2015 F150 V6 non-Ecoboost

The mechanic shop said coil # 3 is bad and
needs to be replaced.  I bought and installed
1 new coil and 1 new spark plug on # 3 and
put it all back together.  Now the motor is
misfiring and shaking even more than before
the install when I rev the motor.  Also, I hear
what sounds like the sucking of air right
around the area of the number 3 coil when
the motor is reved/RPMs increased.

I’m assuming I didn’t install something
correctly.

Any help to remedy is greatly appreciated.  
Thanks.