A: It is great that you and the dealership have isolated this problem to the heat shield. If the only problem is bolts backing out, this is easily resolved by using rivets, self-tapping bolts, or even a few welds on the shield.
Car Care Tip: Expect to need brakes about every 30,000 miles on an averagely driven automobile.
Larry Rubenstein is a master technician who owns a North Shore service station. His column appears every Saturday. Write to Larry at The Salem News, c/o Auto Scanner, 32 Dunham Road, Beverly, MA 01915, or send an email to email@example.com.