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 warranties and how they effect our bottom line with auto repairs and maintenance. Also on this show:

• How can you tell if your auto shop is using quality parts?
• Should I ask my auto repair shop to use name brand parts?
• What are re-manufactured parts?
• 2013 Duramax: The frame was dented on our truck after a major accident. The repair shop had to order a new one. Will a new frame alter the way the truck functions when we're using it for hauling purposes?
• 2003 Honda Accord: The dealership is telling me I need a new power steering pump. The price seems high. Is it worth paying dealership prices versus going to a smaller shop? Do the dealerships usually use quality parts?
• 2006 PT Cruiser: The battery light comes on sporadically. I've had the battery checked and everything is fine. I'm also having a problem with other lights coming on off randomly. What should I do about this?
• 2011 GMC Sierra: I had body work done on my truck after an accident. The back up sensors are not working right and it seems like a difficult problem to diagnose and my insurance company isn't helping me resolve the problem. Any suggestions?
• Will replacing the air filter improve the gas mileage?
• 2002 Denali 90,000 miles: The first gear is slipping but the fluid is fine. Is this a transmission problem?
• 2006 Mitsubishi: My service engine light keeps coming on and off. I've taken it to a couple of shops and they're all telling me something different. Is there really something wrong?
• 2004 VW Jetta: My check engine light is on. My car is overheating at a stop but then resuming back to normal. Is this a bad oxygen sensor?
• 1995 Ford Mustang: I'm looking for a new transmission and need a good price. Any suggestions?

Cars talked about on this show are the 2013 Duramax, 2003 Honda Accord, 2006 PT Cruiser, 2011 GMC Sierra, 2006 Mitsubishi, 2002 Denali, 2004 VW Jetta, 1995 Ford Mustang.