This hour, Ron tackles a dealership dispute after a headlight replacement—when a customer later discovers the entire inner wheelwell liner missing and can’t prove who removed it. Ron explains how to use factory procedures and documentation to hold a shop accountable and why missing liners can become a real corrosion and safety issue.

Plus: a rare day in the shop—three exhaust repairs in one day—including a Toyota Highlander with a subtle flange leak that snowballed into hardware repairs and an O2 sensor surprise. Then Ron weighs in on oil viscosity “advice” from YouTube, a Mazda CX-5 deal for a high-mile commute, and when to replace a battery on a low-use vehicle—especially with today’s electronics and battery monitoring resets.

• Grab your Car Doctor gear – T-shirts & more at CarDoctorShow.com

• Follow the wrench – Instagram @ronananian for shop life & behind-the-scenes

• Watch & learn – Auto repair tips & videos on our YouTube Channel

• Got a car question? Call the Car Doctor Hotline 24/7 – (855) 560-9900

• Join the conversation LIVE – Saturdays 2–4 PM Eastern

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Sometimes the best repair is the one you don’t make—and Ron explains why with a 2007 Mercury Milan that came in for a simple turn-signal problem. What looked like an easy bulb swap turns into a lesson in modern diagnostics, networked body modules (GEM/SJB), and the harsh reality of obsolete parts and programming limitations.

Then Ron takes a call on a 2023 Chrysler Pacifica with an intermittent no-start and a “pop-pop” sound near the battery—plus a hood that wouldn’t even open—raising questions about cable routing, connections, possible prior damage, and whether the van has start/stop with an auxiliary battery.

Plus: an F-150 slowly losing coolant with no visible leaks—Ron walks through pressure testing, dye testing, internal vs external loss, and when a sealant strategy may make sense on high-mileage trucks. And for low-mileage drivers wondering when to change oil, Ron stands by his rule: five months or five thousand miles—because an oil change is also a maintenance checkpoint, not just fresh oil.

• Grab your Car Doctor gear – T-shirts & more at CarDoctorShow.com

• Follow the wrench – Instagram @ronananian for shop life & behind-the-scenes

• Watch & learn – Auto repair tips & videos on our YouTube Channel

• Got a car question? Call the Car Doctor Hotline 24/7 – (855) 560-9900

• Join the conversation LIVE – Saturdays 2–4 PM Eastern

See omnystudio.com/listener for privacy information.

It’s New Year’s and Ron jumps right into real-world problems: a Lexus with an intermittent no-start, brakes that squeal after new pads and rotors, dash lights and tire-pressure warnings that won’t behave, and a Kia oil leak after a quick-lube oil change. The hour wraps with a Silverado that keeps killing batteries in cold weather and Ron’s reminder to stop shopping repairs by phone quote. Diagnosis beats guessing—and good mechanics aren’t expensive, they’re priceless.

• Grab your Car Doctor gear – T-shirts & more at CarDoctorShow.com

• Follow the wrench – Instagram @ronananian for shop life & behind-the-scenes

• Watch & learn – Auto repair tips & videos on our YouTube Channel

• Got a car question? Call the Car Doctor Hotline 24/7 – (855) 560-9900

• Join the conversation LIVE – Saturdays 2–4 PM Eastern

See omnystudio.com/listener for privacy information.