Tech Tips

CAN FD Compatibility: Adapters, Firmware, and Scan Tool Limitations Tech Tip

January 5, 2026

This tech tip explains how CAN FD systems affect scan tool communication, why some older scan tools require an adapter and firmware updates, and what happens when those updates aren’t […]

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Load Testing Tech Tip

June 4, 2025

Learn how to properly test a battery: ensure it’s fully charged before performing a load test. A discharged battery will always fail, but with the right technique, you can accurately […]

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How To Calculate Fuel Volume Tech Tip

May 6, 2025

Matt Buca shares a quick diagnostic strategy from our new GM diagnostics course. Learn how to group coolant temp, intake air temp, and ambient air temp sensors on your scan […]

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Ford F-150 and Explorer Hybrid Diagnostics Tech Tip

April 7, 2025

Working on the F-150 Explorer Hybrid? You’ll need the right tools to safely test the three-phase traction motor, like a milliohm meter, a scope isolator, and a megaohmmeter. Plus, don’t […]

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Electrical Fundamentals Tech Tip

March 10, 2025

In this new tech tip, Larry Cardell from AVI shares a faster way to diagnose two and three wire sensors using a throttle position sensor. Learn how to quickly verify […]

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Tesla Diagnostics Fundamentals Tech Tip

February 11, 2025

In this new tech tip AVI’s Training Director, Tom Rayk, walks you through how to access Tesla’s Service Mode for diagnostics and repairs.

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CAN Networking Diagnostics Tech Tip

October 14, 2024

In this Tech Tip, instructor Jerry Stewart demonstrates how older scan tools may require a CAN FD adapter and a firmware update to communicate with newer vehicle systems. Jerry walks […]

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Complete Fuel Systems Diagnostics Tech Tip

June 11, 2024

In this tech tip, we advice on how to extend the life of your vehicle’s fuel pump.  

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Chrysler MultiAir Tech Tip

May 9, 2024

In this Tech Tip, training director Tom Rayk gives a tip on servicing the brick on the Multiair. Click here to view the full course!

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Millennial Perspective: What I Want From an Auto Repair Shop Tech Tip

April 8, 2024

In this Tech Tip, Sara Fraser gives a tip as to why millennial customers might not be visiting your shop. Click here to view the full course!

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Electrical A/C System Testing Tech Tip

March 11, 2024

In this Tech Tip AVI Training Director, Tom Rayk reviews how to save time and effort when working with OEM refrigerant

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Ford Diagnostic Strategies Tech Tip

February 13, 2024

In this Tech Tip Instructor Jerry Stewart gives us a look at part of the process involved in replacing phasers.

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ASE 101 Test Tips- A1 Thermostats

January 24, 2024

  A hot engine is crucial for two reasons: burning off emissions and entering “closed loop” for optimal fuel delivery, a function achieved by the thermostat. The thermostat itself is […]

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ASE 101 Test Tips- A7 Compressor

January 23, 2024

Automotive compressors come in several types, each with its own operational characteristics and applications. 

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ASE 101 Test Tips- A8 Fuel Injectors

January 22, 2024

Which testing method is best for finding a clogged injector? Ohms testing, noid light test, flow test, pulse width modulation test?

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ASE A5 Master Cylinder Bench Bleeding

January 21, 2024

What is the most likely cause of a brake pedal falling to the floor while the vehicle is stopped? A leaking master cylinder primary seal?

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Electrical Anomalies Tech Tip

January 9, 2024

In this tech tip from the AVI program “Electrical Anomalies”, Instructor Dave Hobbs gives viewers a scenario on why a stuck relay might occur.

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Dodge Cummins 6.7L Update

December 11, 2023

In this tech tip from the AVI program “Cummins 6.7L Update”, Instructor Tom Rayk gives viewers some great tips on servicing Cummins engine. 

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Alignment Pre-Inspection Tech Tip

October 16, 2023

In this tech tip from the AVI program “Alignment Angles”, Instructor John Gardner shows us why Pre-Alignment Inspections are so important. 

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Fluke Proving Unit Tech Tip

July 3, 2023

In this tech tip from the AVI program “Hybrid and EV Tools”, AVI Director of Training Tom Rayk shows you the importance of making the Fluke Proving Unit part of […]

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DC-DC Inverter Identification Tech Tip

May 30, 2023

In this tech tip from the AVI program “Bad Connections PHEV and BEV Won’t Charge”, Delphi Instructor Dave  Hobbs shows a simple identification method for spotting a key component found […]

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How NOT to Blow Up Your Scan Tool Tech Tip

In this tech tip from the AVI program “Bad Connections PHEV and BEV Won’t Charge”, Delphi Instructor Dave  Hobbs explains how the USB connector on your computer might blow up […]

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NOx, NOx, Who’s There? Controlling NOx & Hydrocarbon Emissions Tech Tip

May 4, 2023

In this tech tip from the AVI program “NOx, NOx, Who’s There? Controlling NOx & Hydrocarbon Emissions”, AVI instructor Vince Manship gives you some clues on what to look for […]

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New Tech- Scan Tool Techniques Tech Tip

April 3, 2023

Does your scan tool have a reporting function, and if so, are you using it enough. AVI Director of Training Tom Rayk shows you the value of using the reporting […]

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HEV Maintenance Opportunities-HVAC Tech Tip02

March 3, 2023

In this tech tip from the AVI course Hybrid Electric Vehicle Maintenance Opportunities-HVAC, instructor Andy Tirado gives you tips on the importance of the correct oil on Hybrid and Electric […]

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HEV Maintenance Opportunities-HVAC Tech Tip01

In this tech tip from the AVI course Hybrid Electric Vehicle Maintenance Opportunities-HVAC, instructor Andy Tirado gives you tips on finding A/C system leaks on Hybrid and Electric Vehicles.

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Catalyst Efficiency Tech Tip

January 31, 2023

In this tech tip from the AVI course Catalyst Efficiency, instructor John Barclay uses a Chrysler demonstration to show how you might get fooled when using O2 sensor switching patterns […]

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What Employees Want

January 4, 2023

What do employees really want? Whether you’re a shop owner or shop employee, check out what Shop Management instructor Bill Haas has to say.

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Hybrid/EV Service Opportunities 12v Battery Charge Tech Tip

Determining the charge on the 12-volt battery on a hybrid is an important part of any routine service.  AVI Instructor Andy Tirado shows you why this can be very important […]

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Hybrid/EV Scan Tool Diagnostics –Tech Tip 1

December 5, 2022

Why does the brake fluid look low in this Prius?  Watch this tech tip to learn more about hybrid brake system pressurization.

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Cyber Security Tech Tip – Bad Instrument Cluster

July 14, 2022

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MAF Sensor Tech Tip

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AC Compressor Tech Tip

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Cylinder Pressure Tech Tip –Pressure Transducer

June 29, 2022

In this Tech Tip from In Cylinder Pressure Diagnostics, instructor John Barclay discusses the important information to know when inserting pressure transducers.

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Diesel Labscope Tech Tip – Scope Compression Testing –Amperage vs Voltage

May 4, 2022

In this Tech Tip from Diesel Scope Diagnostics, instructor Tom Rayk discusses the relationship of amperage and voltage in relative compression testing.

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