Stop the Whirlpool dryer and look inside the dryer's drum for any loose objects such as coins, pens or anything else that may have been in a pocket of clothing. Remove the object and restart the dyer to determine if the noise has stopped.
Unplug the dryer from the wall outlet to disconnect all power to the unit.
Remove the lint trap from the lint compartment on the top of the dryer.
Remove the screws that hold the top panel in place. Pull the panel off to access the dryer belt.
Tilt the dryer forward and lift the dryer drum to remove the belt. Check the dryer's belt. A belt that is worn, cracked, split or broken will cause loud noises.
Slide the old belt off of the drum and pull it out to remove it. Take note on how it is positioned over the drum.
Install the new belt. Lean the front panel away from the dryer and slip the new belt over the drum. Locate the position of the old belt and slip the new belt following the old belt's position ensuring the grooved side of the belt faces down. Push the idler pulley towards the motor to allow you to slip and loop the belt around the motor pulley.
Place the top panel on the Whirlpool dryer and screw it in place.
Open the dryer door and use your hand to rotate the drum counterclockwise a few turns to ensure the belt is secured.
Plug the dryer into the wall unit and begin use. If the noise still exists, you'll want to call a professional repair technician.