DES MOINES, Iowa — With the clack-clack-clack of an impact wrench, T.J. Shouten tightened the last bolt on a new steel edge for his pickup's snowplow. "I like to do a lot of the work myself if I can," ...

From oil changes to gasket swaps, more drivers are discovering the satisfaction—and savings—of fixing their own cars. With the right tools, preparation, and step-by-step guidance, many repairs are ...