Ron Ananian The Car Doctor

In this hour, Ron tackles real-world fixes: a 2017 Jeep Wrangler with sticky steering (steering shaft u-joints + PB Blaster), a P0128 thermostat rate-of-rise code and murky coolant, a 2012 Honda CR-V catalytic converter myth (why cats do wear out), and a 2013 Chevy Silverado low-compression mystery (leak-down tests, borescopes, and a $20 vacuum gauge). Practical diagnostics, parts advice (MotoRad, CRC), and smart ownership tips—all in plain English. If you’re chasing misfires, no-starts, or slow warm-ups, this one’s your roadmap. 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.

This episode demystifies Technical Service Bulletins (TSBs) and why they’re not recalls. Ron breaks down GM’s 23-NA-072 low-speed TCC shudder—what “ATF degradation” really means and why a full transmission fluid exchange matters. Then: the Toyota RAV4 P0755 shift-solenoid fault and why many were cured with an updated OE ECM, not a transmission. Plus a quick diagnostic for a 1994 Chevy Blazer speedometer that dies on bumps (VSS → DRAC → cluster, use the cruise test). Practical, no-nonsense diagnostics that save parts—and wallets. 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

Ron walks a caller through the right way to measure parasitic draw (use a real meter with min/max and leave it connected), then tackles GL-4 vs GL-5 confusion on a ’99 Sentra—plus where to find stubborn drain plugs when OEMs say “obsolete.” We hit hybrid maintenance realities with a ’22 Prius CVT service, a cold-start 7.3 Power Stroke that likely needs cleaning for stiction and better cranking strategy, and a 2017 Colorado Duramax with a first-gear slip that may respond to additive—before facing the cost of a rebuild. Ron also flags industry ripples from parts-maker bankruptcies and why cheap, mystery-brand components are costing drivers more in the long run. 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) 56

Code P0203, winter-readiness, and two electrical gremlins. Ron opens with a 2015 Jeep Wrangler 3.6L that set P0303 (misfire) and P0203 (injector circuit). He walks through smart diagnostics: verify injector resistance against known-good cylinders, check the circuit from PCM to injector, then confirm with a scope or a swap test—because a component can ohm “good” cold and fail hot. From there, he pivots to fall-and-winter driving prep in response to an RV-fire traffic shutdown: fuel up, pack essentials, and plan for long, no-exit stretches. Classic-iron detour: documenting a ’67 Chevy II Nova (VIN/cowl tag and build sheet beat a window sticker). Then it’s a ’96 Olds Aurora with a fickle charge (don’t trust the dash—test the alternator feed and wiring) and an ’09 Escape no-crank likely flirting with anti-theft/steering-lock issues. Grab your Car Doctor gear – T-shirts & more at CarDoctorShow.com Follow the wrench – Instagram @ronananian for

Ron Ananian The Car Doctor - Hour Recap ’72 Dodge Dart (Kevin): Skip octane boosters/race gas; a true ~10:1 flat-top can run on quality 93. Focus on plug heat range, timing, and jetting. “Mild goes wild.” ’75 Chevy Van (Greg): Hot-soak flooding. If no boil-over or needle/seat drip, likely needs a pro Quadrajet rebuild/flow test after decades of service. ’08 Kia Rondo (Beth): After repeated A/C failures, weigh repair costs vs. replacement. Consider a well-kept Toyota Solara; one trusted shop > bouncing around. ’03 Buick LeSabre (Sam): With exhaust off at 250k, replace both O₂ sensors with OEM-grade parts. Changing courtesy-light delay likely requires GM Tech-2 (if BCM supports). Listener Email (Miles): Trickle-charging a 2025 Camry Hybrid is generally fine; “deprogramming” refers to adaptives, not OS. Confirm specifics with a savvy Toyota dealer. Ron’s button: We’re “the last Jedi” of hot rodding—keep the torch lit. G

Remote from “somewhere in Pennsylvania,” Ron turns a repair-shop counter chat into a bigger question: don’t shop for the cheapest or the flashiest—shop for the capable. Then the phones fly: a 2021 Nissan Kicks with a stubborn P0101 (use calculated load & fuel trims, don’t parts-swap), a 2024 Highlander maintenance roadmap (fluids early and often), a 1970 Impala idle-stop solenoid lesson, a 2002 Sequoia stuck in 4WD low (likely front-diff actuator/binding—stop driving, inspect), and a 2002 Cummins with dead batteries (charge correctly, then parasitic-draw test <50 mA). Closer: “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) 56

Ron takes his hot rod out for a spin for the first time in a while, then it’s straight into a marathon of listener calls. From every corner of America and on every kind of vehicle, it’s another fast-paced hour with The Car Doctor. 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.

This week on The Car Doctor, Ron explains why the show isn’t on remote as planned and turns the change into a lesson from a recent shop repair. Then the phones light up, and it’s a full hour of fast-paced problem solving as Ron races to get everyone an answer before time runs out. 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.

Ron sits down with IIHS’s Dr. Jessica Jermakian. Together they break down Child Passenger Safety Week: rear-facing timelines, why kids belong in the back seat to age 12, proper restraint selection/installation, modeling safe driving, and what to do if your airbag light is on—along with trusted resources at www.IIHS.org 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.

On this episode of Ron Ananian, The Car Doctor, the first half tackles real-world issues—from new-car tech overwhelm to a GMC Denali folding-mirror diagnosis, plus maintenance advice for a 2016 F-250 and a Chevy Trax fuel-fill vent problem. In the second half, IIHS’s Dr. Jessica Jermakian breaks down Child Passenger Safety Week: rear-facing timelines, why kids belong in the back seat to age 12, proper restraint selection/installation, modeling safe driving, and what to do if your airbag light is on—along with trusted resources at www.IIHS.org 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

The Car Doctor – Checks, Banks & Real-World Car Fixes  On this episode of Ron Ananian, The Car Doctor, Ron exposes the hidden headaches of running a small auto repair business—from a QuickBooks/FedEx check security scare to a TD Bank account freeze—and how a proactive Chase Bank solved it. Callers get practical fixes: a Chevy Tahoe brake-pedal height solution, a Duramax diesel fuel/vacuum diagnostic tip, and a Ford Explorer cold-start game plan. Plus, a sneak peek at a 2015 Toyota Highlander spark plug video that proves why “simple” jobs aren’t so simple. 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      

Flashing a School Bus (Legally): ABS Programming, Honda Axles, Hemi Misfires & EVAP Fixes In this episode of Ron Ananian The Car Doctor, Ron opens with a shop story you won’t forget—flashing a 2008 Chevy short school bus after its new ABS module came in blank. Using the OPUS IVS 360 and remote tech support, he gets the “empty” controller fully configured and back on the road, proving why software and programming matter just as much as wrenches in today’s repairs. From there, Ron tackles real listener calls: How to choose the right Honda Accord CV axles without paying $1,100 each at the dealer The smart way to service Honda automatic transmissions with DW-1 fluid and why pressure switches matter Diagnosing a cylinder-6 misfire on a Dodge Durango Hemi using volumetric efficiency testing and running compression Understanding Infiniti’s P0448 EVAP vent code and how to test before replacing parts Packed with practical scan tool strategies, shop-floor economics

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

Ron Ananian, The Car Doctor - Interview Summary – Optima Batteries with Daryl Brockman Ron talks with Daryl Brockman from Optima Batteries about how today’s vehicles demand more from their batteries. With start/stop systems and heavy electronics, AGM batteries are the go-to for reliability and long life. Optima offers RedTop for standard loads, YellowTop for high-demand systems, and new lithium options for cars, trucks, powersports, RVs, and marine use. Highlights include Optima’s CPR built-in jumpstart reserve, the PowerLink dongle for easy monitoring and charging, and a Bluetooth app that can wake a battery without popping the hood. Backed by Clarios, the world’s largest battery maker, Optima’s products carry top safety certifications and advanced lithium iron phosphate chemistry for cold-weather performance and long cycle life.   Find out more at www.optimabatteries.com   Grab your Car Doctor gear – T-shirts & more at CarDoctorShow.com Follow the wrench &

Ron Ananian, The Car Doctor Fast phones this hour: real overheat triage, clutch/flywheel choices, steering play sanity check, BG carbon service for DI, modern sludge cures, and value axles. Chapter Markers 00:00 – Open / Tease 00:58 – Mark (Bronx) – Sudden Overheat, 4-cyl HondaSteam + gauge pinned = real overheat. Don’t drive; tow. Check thermostat/coolant/pump; rule out head gasket. Pull codes & vitals. 07:29 – Alan (MD) – ’99 Sentra ClutchStart OE or LUK. Machine shops scarce—consider kit with flywheel. Inspect rear main & PCV while in there. 11:48 – Quick NoteMitchell1 award mention. 12:21 – Frank (DE) – ’16 Silverado Steering PlayGet true alignment (proper gear, printout); inspect for looseness.16:07 – PM: DI Carbon – GM recommends BG fuel service; use bgfindashop.com. 19:12 – Kent (ME) – ’08 Wrangler 3.8 Tick/Ping ~2kLikely carbon/valvetrain age. Start with BG clean, plugs, full basel

Ron Ananian, The Car Doctor Three-day shop sprint, ATG misfire class takeaways, and a through-line: maintenance beats repairs. Then calls on when to keep/swap cars, run-flats vs spares, and streetable performance cooling—plus a quick washer-fluid myth-buster. Chapter Markers 00:00 – Open / Monologue3-day week grind; ATG class (Edison). Recognition from listeners. Big takeaway: factory schedule as baseline, oil at 5–6k, fluids-by-condition, turbos work harder—maintenance > repair. 07:25 – Case Study – ’15 Dodge Charger (P0128)Fast diag → thermostat; car shows “minimal maintenance” pitfalls. Cost-per-mile vs deferred work. 11:11 – Tom’s Inspection StoryFull synthetic, 5k intervals; cost-per-month math on real ownership. 13:49 – Mark (Las Vegas) – ’08 Honda CR-V, 241kLoves simple tech; wary of CVT/turbos. Advice: rent/try newer tech, or keep CR-V and invest (engine/trans if needed) vs $30k+ replacement. 17:25 &n

Diagnostics Isn’t a Guess: Go the Distance Ron opens with the truth about diagnostics: commitment, not guessing, gets cars fixed. A stubborn ’06 Acura misfire sets the stage, then real calls highlight trust, process, and the dangers of shortcuts—from a Subaru owner who celebrates his shop, to a Jeep with a rear main leak, a Silverado with a dragging brake, and a Buick Enclave that turned into a parts-cannon case study. Chapter Markers & Highlights 00:00 – Monologue: The Relationship & The Process Story of an ’06 Acura with years of failed repairs. Point: diagnostics require commitment (“go the distance”), not poking and hoping. 12:05 – Micah in Maine: Subaru Legacy Example of a strong shop–customer relationship. Rustproofing mishap solved because both shop and supplier worked together. Lesson: trust and respect pay off. 17:45 – Rocky in Maine: ’92 Jeep Wrangler Rear main seal leaking after clutch job. No miracle fixes

Brakes, Transmissions, Driveline Clunks & the Future of Batteries Description:From spongy brakes on a 4Runner to a Malibu that won’t stay put in park, Ron takes listener calls on tricky driveline and transmission issues. Then Optima Batteries’ Daryl Brockman joins the show to break down the latest in AGM and lithium technology, Hypercore cold-start performance, and why battery tech is evolving faster than the cars they power. Chapter Markers: 00:00 – Spongy brakes on a 2004 Toyota 4Runner 06:20 – Malibu transmission rolls in “Park” 11:15 – Tacoma driveline clunk at stops 17:40 – Optima’s Daryl Brockman on AGM & lithium batteries 27:45 – PowerLink system & built-in jumpstart tech 32:45 – Battery safety certifications & takeaways Grab your Car Doctor gear – T-shirts & more at CarDoctorShow.com Follow the wrench – Instagram @ronananian for shop life & behind-the-scenes Watch & learn –