Ron Ananian The Car Doctor

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 For