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 important things to know and keep your eye out for while preparing your vehicle for emissions testing. Also on this show:

• Why your vehicle will not pass emissions if the check engine light is on.
• What disconnecting your battery does to your cars computer memory?
• Information on some of the “tests” your car will perform on itself while its computer is self-diagnosing.
• How to monitor the wait times in real time at emissions inspection locations.
• How can I find past emissions test results for a used vehicle?
• 2003 Chevrolet Silverado: Can I pass emissions with no dashboard instrumentation at all?
• 2003 Buick Sentry: What information can you give me about my car’s EGR valve?
• 2002 Ford Escape: Will malfunctions in my windshield cleaning unit affect my emissions test?
• 1994 Buick LeSabre: Can you give me any advice concerning fuel tank cleaners?
• 2007 Chrysler 300: I’ve noticed the smell of gasoline while filling my car. Is this just an issue with a gasket or valve?

Cars talked about on this show are the 2003 Chevrolet Silverado, 2003 Buick Sentry, 2002 Ford Escape, 1994 Buick LeSabre, and the 2007 Chrysler 300.