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 talks about the physical and financial consequences of having your check-engine light issue diagnosed properly. Also on this show:

• Circumstances where a check-engine light problem may be covered by your warranty.
• Common check-engine light codes.
• Why you shouldn’t jump to conclusions just from getting your check-engine light code.
• What services you shouldn’t pass up before the summer.
• 2005 GMC Sierra 1500: The oil pressure in my truck is high. Is something wrong or is this possibly just an issue with the gauge?
• 2005 Honda Odyssey: I’ve only ever used Honda transmission fluid. Would you recommend switching?
• 2013 Chevrolet Silverado: My truck was running through transmission fluid quickly. After having the dealership work on it, my truck is feeling sluggish. Any idea what the issue could be?
• 2018 Tesla Model 3: What type of maintenance should I expect when I receive my vehicle?
• 2001 Buick Century: This car is close to 200k miles. I’ve had no major issues for 10 years, but I’ve been considering purchasing something new because of the mileage. Think it’s worth keeping?
• 2003 Mazda B2300: My air conditioning either works great or not at all. What is causing this?
• 1991 Porsche 911: I’ve had an issue with my oil level indicator gauge. After adding only a bit of oil, the gauge reads all the way to the top. Do I have a bigger issue or do you think this is just a gauge issue?
• 2006 Dodge Dakota: At high speeds, my truck shudders while braking. Even after replacing a number of components I still have issues intermittently. What else can you tell me about my brakes?

Cars talked about on this show are the 2005 GMC Sierra 1500, 2005 Honda Odyssey, 2013 Chevrolet Silverado, 2018 Tesla Model 3, 2001 Buick Century, 2003 Mazda B2300, and the 1991 Porsche 911.