How to replace the 3-prong cord on your dryer with a 4-prong cord.
4-prong cords have been required on dryers for almost 30 years, but what happens if you move into a home that has a 4-prong outlet, and your dryer has a 3-prong cord. You do NOT need to go out and buy a new dryer. Changing the cord is a fairly simple procedure that should take less than 20 minutes. This video will show you exactly how to replace your dryer cord.