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 different types of fuel systems and how to maintain them. Also on this show:

• Why do I need a fuel system cleaning?
• What are the different types of fuel injection systems?
• Do fuel system cleanings help with emissions testing?
• What is a motor vac?
• Why is my car running sluggishly?
• What cars have the higher likelihood of carbon buildup?
• 2002 Ford Excursion 73 Diesel: If I don't plug it in at night, it won't start in the morning. What causes that?
• 2007 Hyundai Sonata: The bushing is worn out on the front right control arm and the quote for this repair is $400. This seems too high.
• 2004 Ford Expedition: When the temperature gets above 50 degrees outside, I get a major squeaking noise in the left rear
• 2002 Buick Rendezvous: Can I replace the differential oil flow check valve myself or do I need to have a shop do this?
• 2002 Buick Rendezvous: Intake manifold gasket needs repair and I'm wondering what else I can check while I'm in there?
• What is the best code reader to check my car?
• 2001 Chevrolet Malibu: There is a slight hesitation I'm feeling when I'm on an incline and also when I reach around 45-50 mph. What's the problem?
• 1995 Supra: Is a repair on a head gasket something I can do myself?
• 2012 Chevrolet Tahoe: During the humid months my car is blowing steam out of the air vents. Is this something to worry about?

Cars talked about on this show are the 2002 Ford Excursion 73 Diesel, 2007 Hyundai Sonata, 2004 Ford Expedition, 2002 Buick Rendezvous, 2001 Chevrolet Malibu, 1995 Supra, 2012 Chevrolet Tahoe.