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 AC services and how to keep your car cool this summer. Also on this show:

• Why do some AC systems only work on certain settings?
• The reasons why some common AC repairs are labor intensive.
• What components should be looked over during an AC service?
• What happens if you have a hose leaking refrigerant?
• Important information about blower fan replacement and symptoms of failures.
• 1992 Toyota Pickup: My truck is having issues overheating on the freeways, but never on side streets. What could be causing this?
• 2006 Toyota Tacoma: My transmission was flushed 6 months ago and I’m not sure the correct fluid was used. Should I expect any damage?
• 1971 Chevrolet Chevelle: What information or advice can you give me if we’re replacing the radiator in this car?
• 2002 Lexus GS300: I’ve had issues with braking vibrations. After replacing the pads and rotors, where should I go from here?
• 1994 Ford F250: What advice could you give me if I’m planning on replacing my master cylinder?
• 2007 Dodge Ram: I’ve had an intermittent shifting issue with my truck. I was told it could be the transducer. What do you think?

Cars talked about on this show are the 1992 Toyota Pickup, 2006 Toyota Tacoma, 1971 Chevrolet Chevelle, 2002 Lexus GS300, and the 1994 Ford F250.