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 factors and scenarios that may lead to a necessary transmission service for your vehicle. Also on this show:

• Why a bad transmission service is ultimately worse for your vehicle than no service at all.
• How transmissions have evolved over the past decade.
• Why transmission dipsticks have become less common.
• Signs of a subpar transmission service.
• How the level of transmission fluid in your vehicle will affect overall performance.
• 2010 Ford F150: My truck is having difficulty shifting into higher gears while driving uphill. What advice can you give me?
• 2012 F150: The dealer has recently recommended a transmission service for my truck. What type of budget should I have in mind?
• 2014 Hyundai Odyssey: How can I alleviate a knock in my transmission?
• 2000 Dodge 1500: I’m having difficulty shifting into 1st gear after being parked. Is this a transmission related issue?
• 2004 Cadillac Escalade: What does the “Service Stability System” warning light mean?
• 2007 Saturn Ion: Is there a cap that should be covering an opening to my transmission?
• 2008 GMC Acadia: My check engine light has been coming on intermittently and is also having trouble shifting into third gear. What could be causing this?

Cars talked about on this show are the 2010 Ford F150, 2012 F150, 2014 Hyundai Odyssey, 2000 Dodge 1500, and the 2008 GMC Acadia.