Bumper to Bumper Radio, the car guys on KTAR, 92.3 FM in Phoenix, AZ, broadcast every Saturday from 11:00 am to noon. On this show, Dave Riccio of Tri-City Transmission in Tempe, AZ talks about when and why you may need to replace your car’s catalytic converter and explain their function in detail. Also on this show:

• Why is the cost of replacing your catalytic converter so high?
• What are the typical causes of wear on a catalytic converter?
• How have catalytic converters evolved in modern vehicles?
• Is it worth it to buy high end spark plugs?
• 2007 Mini Cooper S: What information can you give me about low oil pressure following an engine rebuild?
• 2003 Chevrolet Tahoe: Why does the hotter weather affect my oil pressure?
• 2013 Hyundai Sonata: I’ve taken my car to the same shop for a charging system issue and have paid for two costly repairs. Is there somewhere in Chandler you would recommend where I can get a second opinion?
• 2014 Toyota Tacoma: How often should I be replacing the spark plugs in my truck?
• 2013 GMC Terrain: How can I fix a consistent issue with my oil pressure if there are no visible leaks?

Cars talked about on this show are the 2007 Mini Cooper S, 2003 Chevrolet Tahoe, 2013 Hyundai Sonata, 2014 Toyota Tacoma, and the 2013 GMC Terrain.