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 and Matt Allen of Virginia Auto Service in Phoenix talk about the different types of vibrations that may occur in your car or truck and how to narrow down the source of the problem. Also on this show:

• What are chassis ears?
• The importance of going for a “test drive” with your auto repair technician if you’re hearing a noise.
• Why sometimes it’s best to leave your car at the shop for a few days if you’re having trouble pinpointing an issue with your vehicle.
• Why you should switch cars with your spouse from time to time.
• 2009 Chevrolet Silverado: My truck is telling me to service the 4x4. What information should I have before looking into this?
• 2006 Chevrolet Colorado: My truck has been dying prior to taking turns or while merging off of a freeway. Have you seen this issue before?
• 2012 Lincoln MKZ: Are there any extended warranties that you personally recommend?
• 2008 Toyota Sienna: I’ve noticed a shudder/hesitance around 60 mph coming from my van while accelerating. What factors could be contributing to this?
• 2012 Ford Fiesta: My AC will only work for around 45 minutes. I’ve replaced a number of parts already – where should I go to fix this?
• 2013 Audi A7: There is a thump sound coming from my car after it sits overnight. Should I be concerned about this?

Cars talked about on this show are the 2009 Chevrolet Silverado, 2006 Chevrolet Colorado, 2012 Lincoln MKZ, 2008 Toyota Sienna, 2012 Ford Fiesta, and the 2013 Audi A7.