Tech Tips & Troubleshooting

Gauges alone can’t diagnose modern A/C. Here is a step-by-step flow for R-1234yf, hybrid and EV systems: identify refrigerant, check vacuum decay, find leaks with forming gas, read scan data, and choose the right Konfort machine.

Cold mornings stop more diesels with gelled fuel and iced filters than with dead batteries. A pre-freeze checklist for diesel fuel, water separators, DEF and a pre-winter scan, built on fuel chemist and OEM guidance.

If you’ve recently gotten an email suggesting you’re about to lose support—and that the “only” solution is switching diagnostic brands—take a breath. You’re not the only shop being put in that position, and you’re not stuck. At DEFY DIAGNOSTICS, we’re keeping this...

New Free Resource: Downloadable Wiring Diagrams Now Available on DefyDiagnostics.com At Defy Diagnostics, we know how frustrating it can be when you’re chasing down an electrical fault, and you don’t have the right diagram in front of you. Whether you’re...

Last week, I attended the Public Fleet Advisors Fleet Management Training Seminar at the Greenville Public Works Facility in Greenville, South Carolina. It was a full day of education, discussion, and perspective, and I left with a deeper respect for the fleet...

Ever cleared a code, took a test drive, and watched that light pop right back on? You’re not alone. Most code lists explain what a DTC means, but not how to use it to make faster, cleaner, safer decisions. Techs and fleet managers need context: severity, first steps,...

Microsoft will officially end support for Windows 10 on October 14, 2025. After that date, Windows 10 machines will continue to run, but they’ll no longer receive security patches, feature updates, or official technical support. For most shops, that’s an IT concern....

Tired of missing oil changes, DOT inspections, or service intervals? Fleet Tracker Pro is the solution, and we’re giving it away for FREE. Finally: A Simple Way to Track Vehicle Maintenance, Without Paying a Dime Let’s be honest: tracking maintenance is a nightmare....

(And How to Choose the Right Scanner for Your Shop, Fleet, or Facility) Imagine, your the owner of a busy diesel repair shop and you dropped nearly $8,000 on a scanner that you thought would “do it all.” Two months in, it couldn’t connect to half the fleet. No...

If you're running Texa diagnostic tools, you're already a step ahead of the curve. Whether you're servicing heavy-duty trucks, marine engines, agriculture equipment, or powersports vehicles — Texa gives you powerful insight and control over complex systems. But here's...