Any Evanston driver who understands preventive maintenance knows that "if it ain't broke, don't fix it" is bad auto advice. Replacing a part before it breaks is much less costly for Evanston residents than repairing the engine damage that comes after a part breaks or fails. A good example of this is the serpentine belt....The post Evanston Car Owners Ask: Why Do I Need to Change My Serpentine Belt? appeared first on Doc Able's Auto Clinic, Inc..