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 . On this show, Matt covers problems ranging from emissions testing to electronic brake modules. Special guest Greg Lafontsee from Automotive Diagnostic Specialties. Also on this show:

• What are some things I should do to the car after it's been sitting for months?
• 2001 Chevrolet S10: The lights on the panel come on intermittently and I'm wondering if this is a problem with the electronic brake module?
• 2007 Mustang Shelby: After filling my tank, the needle only reads 1/4 of a tank.
• 1999 Tahoe: Do you know any auto repair shops that will use customer purchased parts?
• 2003 VW Beetle: When it gets below 3/4 of a tank, the car hesitates.
• 1984 Mercedes 280: The only thing it has on it is an EGR Valve and catalytic converter. How do I find out what else it will need before it goes through emissions?
• Cadillac El Dorado: The car is running hot and I think it's the head gasket.

Cars talked about on this show are the 2001 Chevrolet S10, 2007 Mustang Shelby, 1999 Tahoe, 2003 VW Beetle, 1984 Mercedes 280, Cadillac ElDorado.