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, AZ talk about automotive computer diagnostics. Special guests include Greg LaFontsee and Mason from Automotive Diagnostic Specialties (ADS) of Chandler and Tempe. Matt Allen appears remotely from the Good Guys Auto Show in Westworld. Also on this show:

• Changes in computer diagnostics over the years.
• Differences between auto shop diagnostics and parts diagnostics.
• 2005 Ford Focus. Developed bad vibration while in drive at a stop. I changes the right front motor mount and 2000 miles later it started vibrating again. Replaced motor mount again, but problem is still there somewhat. Heat and cold seem to affect the vibration.
• 2004 Lexus with 76,000 miles. When you slow down for a stop and then speed up again, there is a long hesitation and then it kicks in.
• 2002 Volvo with 254,000 miles. Has an oil leak. Might be a transmission problem. Is it worth repairing and keeping this car?
• 2002 Dodge Intrepid. Heard a noise like a spring breaking while turning steering wheel. The air bag light came on. Shop said it was a clock spring in the steering column.
• Which octane gas is right for my car?
• 1997 Ford F150
• 2004 Chevrolet Trail Blazer. Oil pressure gauge is dropped all the way to the bottom. Replaced cam shaft sensor. Still have same problem.
• 2009 Toyota Camry. Do front and rear brake pads need to be changed at the same time?

Cars talked about on this show are the 2005 Ford Focus, 2004 Lexus, 2002 Volvo, 2002 Dodge Intrepid, 1997 Ford F150, 2004 Chevrolet Trail Blazer, 2009 Toyota Camry.