Ron Ananian, The Car Doctor - September 13, 2025 - Hour 2 - The Good, The Bad & The Ugly - (855)560-9900 24/7 Hotline

The Good, the Bad & the Ugly: Thermostats, Cold Misfires, Dual-Tank Gremlins & Shop Truths Ron opens with “the good, the bad, and the ugly,” then dives into rapid-fire diagnostics: a 2019 Chevy Blazer that loses A/C and power assist when a bad thermostat skews engine temp strategy; a 2017 Ford Explorer with P0300/P0316 cold-start misfires and how to prove cause using Mode 6, freeze-frame, power balance, and residual fuel-pressure tests; a 1996 Ford F-350 dual-tank fueling issue caused by check-valve logic/recall history; a quick clutch-interlock switch hack; and a Toyota Highlander Blackstone oil-analysis follow-up. Plus: why parts updates (hello, brake pad tape) and better shop communication matter. Practical steps, scan-tool tips, and straight talk for DIYers and pros. Chapter Markers (condensed) 00:00 – Tease: “Good, Bad & Ugly” open; straight to the phones 01:11 – 2019 Chevy Blazer: thermostat fault, A/C & EPS cut by strategy 05:44 – 2017 Ford Explorer: P0300/P0316; Mode 6, freeze-frame, power balance, residual pressure plan 17:50 – 1996 Ford F-350: dual tanks pumping into each other; check valves & recall history 24:02 – Quick tip: clutch-interlock switch adjustment workaround 26:14 – 2015 Toyota Highlander: Blackstone oil-report results & contamination prevention 30:39 – Close: parts changes (pad adhesives), customer approach, and shop relationships 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.