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

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