Technical Articles

February’s Featured Course: Evolving Fuel Systems Technology

February 5, 2021

Fuel Systems THE FILLING STATION What do we really need to think about when filling our tanks? – First and foremost, it is typically not a good idea to fill our tank when there is a fuel truck filling the underground tanks at our favorite gas station. The primary reason is that when the fuel […]

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Timken Commercial Vehicle TechTips

December 4, 2019

Timken Medium-Duty Vehicle TechTips

Timken Light Vehicle Tech Tips

How far away are we from self-driving cars?

October 16, 2019

How far away are we from self-driving cars? So how close is humankind away from self-driving automotive vehicles? Innovators may be off for a few more decades, but this will break all over the news. The media loves to blow things up, metaphorically, because that’s what it does best. Boston Dynamics Self-driving cars meet your […]

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Climate Control Diagnostic Process

September 18, 2019

Climate Control Diagnostic Process By John Forro Every Technician needs to have a diagnostic plan. The primary goal of the diagnostic plan is to prepare the Technician to solve the problem at hand. The plan may not work on the first try, but it will create very useful road map. To start, review the customer […]

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PCM Modes of Operations

September 13, 2019

PCM Modes of Operations by John Forro Avoiding Typical PCM Pitfalls? Well, the number one solution would be education. The more prepared you are on the subject the easier it is. Don’t forget to do proper research as well. Make sure you dig deep into the brand of car, common issues, wiring diagrams, how the […]

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Diagnostic Procedure with ICE and GDI

Diagnostic Procedure with ICE and GDI By John Forro The internal combustion engine has never had a clean design. This is why technology is moving away from ICE as fast as possible. Starting with hybrids, converting to electric vehicles. This will never be a 100% efficient power plant because every one of those piston rings, regardless of condition, […]

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Fixing Lean Fuel Banks on a 2002 Chevy Avalanche

August 28, 2019

Fixing Lean Fuel Banks on a 2002 Chevy Avalanche By John Forro So here’s an excellent case study on bad fuel pumps! A 2002 Chevy Avalanche was towed in for a diagnosis. Using a generic global scan tool, P0codes like P0171 were pulled up. When the P0171 code is pulled from your scan tool it […]

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GM TPMS: The Setup And Relearn Procedures

July 15, 2018

View All Our Tire and Wheel Courses       GM TPMS systems on Buick, Pontiac, Chevy, GMC, Cadillac and Hummer models are some of the easiest to service if you have the right tools and knowledge. Starting in 2007, most vehicles use a TRW-, Schrader- or VDO-manufactured system that all share the same relearn […]

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The Future of Brake Technology

March 12, 2016

The Future of Brake Technology German OEM supplier Siemens is developing new braking technology called electronic wedge brake. This can dramatically reduce stopping distances of vehicles compared to hydraulic brake systems. Foundations originate from German Aviation and Aerospace Center applications. nike air max 90 We have seen increased technology of braking through the use of […]

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Antilock Braking Systems Technology

Antilock Braking Systems Technology We all know today’s automobiles are “super smart,” hence the need for “super smart” technicians. These days, electronic devices control 85 percent of all vehicle functions, including fuel management, ignition, electric shift transmissions, ABS brakes and climate control. Shop Owners, Service Writers, and Technicians need to take advantage of training to […]

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2016 AVI Conference @ AAPEX

2016 AVI Conference @ AAPEX Save The Dates: October 31-November 1st @ the Sands Expo and Convention Center in Las Vegas AVI conferences attract some of the top technicians in the country and the top instructors in their field. nike air max 2015 All technicians, service writers, shop owners and managers are invited to benefit […]

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Get it Out the Door!

March 4, 2016

Get it Out the Door! It’s coming….Friday is coming! Friday brings a slight drop in the work load, anticipation of a weekend with time all to yourself (unless you own the place) and time to relax! But to get through Friday, one thing has to happen, you have to get it out the door. “It” […]

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High Times At Ford

What is all this talk about clean diesel? Is it the fuel? Is it the engine technology? Is it the aftertreatment technology? Is it the push for cleaner emissions? Yes, it’s all of the above. Clean diesel is a collaborative effort set forth by the EPA, carried out by OEMs, state and local governments, environmental and community organizations and the Federal government.

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Gates Giveaway at AAPEX

March 30, 2015

GATES GIVEAWAY With the AAPEX show right around the corner, the excitement builds for vendors, buyers, and those planning to attend as fans. Thousands of products that will be on display, and there are always the “bonus” things that go on at AAPEX, including many companies promoting giveaways and challenges to leave Vegas with cash. […]

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Bosch at AAPEX 2015

March 24, 2015

Bosch at the 2015 AAPEX Show The world’s largest supplier of automotive components had some things lined up that provided those in attendance with a fantastic experience. Bosch has been around for over 125 years, and the company has delivered several milestone moments at trade shows and beyond. As the AAPEX show went on, it […]

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The 2015 SEMA Show

THE 2015 SEMA SHOW The automotive industry had its eyes locked in on the big annual conventions set for the scene of Las Vegas. SEMA was once again at the forefront as the biggest show going. Did you know SEMA puts on the largest annual show of small businesses in the country? More facts about […]

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Collision Shop Diplomacy

March 23, 2015

Recently I was reviewing an article in AutoInc, involving a “picky customer” case history at a collision repair facility. The question was what would you do if you had a customer you simply could not satisfy? No matter what you offered to do or had done to achieve a near perfect repair, this customer would […]

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Start-Stop Technology Growth

March 5, 2015

Start-Stop Technology growth worldwide prompts the increase in AGM battery production to meet rising automaker demand. In the next 5 years it will be difficult to buy a new vehicle does not feature Start Stop technology. Start-Stop technology continues to gain in popularity as tightening government fuel economy and carbon emission reduction targets put additional […]

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Big News for Heavy-Duty Vehicles

BIG NEWS FOR HEAVY-DUTY VEHICLES Major players in the heavy-duty vehicle industry announced the signing of a Memorandum of Understanding (MOU) on September 15, 2015 regarding access to heavy-duty vehicle service information. Model year 2010 and later trucks, as well as buses over 10,000 lbs sold in the United States and Canada will be the […]

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Clean Diesel–What It Is

December 23, 2014

What is all this talk about clean diesel? Is it the fuel? Is it the engine technology? Is it the aftertreatment technology? Is it the push for cleaner emissions? Yes, it’s all of the above. Clean diesel is a collaborative effort set forth by the EPA, carried out by OEMs, state and local governments, environmental and community organizations and the Federal government.

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Advanced Tips For Changing Fuel Pressure On EFI Systems

October 23, 2014

Changing the fuel pressure on an EFI System is an effective method of affecting engine performance and making more power. However, there are many do’s and don’ts, and rules of thumb that can be frustrating to learn the hard way. Below are many small, but key points, tips and insights all engine tuners should to […]

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Why You Can’t Ignore Reflash Repairs

by Andrew Markel Reflashing has been around for more than 20 years. In the past, updates were rare and typically addressed drivability and emissions issues. Recently, I’ve noticed that ­reflashing is being used to solve more problems that, previously, only parts used to solve. I was looking for technical service bulletins (TSBs) to include in the […]

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Fuel Trim Diagnosis And O2 Sensor Performance

September 10, 2014

To better understand how fuel trim numbers are generated, the ECM/PCM uses the oxygen sensor or air/fuel sensor input signal to adjust fuel injector pulse-width values. If a longer-than-normal injector pulse width is required to maintain the desired ­oxygen sensor signal, the ECM/PCM displays an ­increased fuel trim value in its datastream. Of course, accurate […]

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Can ‘Add-ons’ Affect The CAN System?

August 27, 2014

Shortly after a male teen gets his first car, the first thing he wants to do is modify it with new wheels, upgraded exhaust, seat covers and, the most important and popular modification — the stereo. The mindset is, when you drive to school with all your buddies in the car, you need good-sounding tunes. […]

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Diagnostic Solutions: Diagnosing Misfires

August 13, 2014

Air/fuel ratios caused by leaking fuel pressure regulators and other fuel control issues can also cause general misfires on other vehicles. Freeze-frame data obtained by a scan tool can be used to determine the conditions under which a general misfire has occurred. In these cases, short- and long-term fuel trim numbers can be used to […]

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ASE A5 Test Prep: Brake Pulsation And Runout

Being able to diagnose and solve brake rotor pulsation problems is critical to passing the ASE A5 exam for brakes. Pulsation and brake performance problems may not seem to be the most difficult, but they often cause the most headaches for technicians. Below are sample questions based on the A5 task list, written by the […]

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Quick Management Tips from Automotive Management Network

July 30, 2014

All new management tips on being prepared, customer service and etiquette.  Check out the latest Auto Shop Monthly Management Tips from the Automotive Management Network to get inside secrets on managing your shop and increasing your bottom line. Tip # 181 – You need to change your attitude, son! When sizing someone up, how important […]

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Tips: Using The Oscilloscope: Ignition Coils

Current Ramping – Ignition Coil Regardless of design configuration, the role of the ignition coil is to multiply battery voltage into high voltage, which will provide the necessary spark. Following Ohm’s law for the conversion of volts to amperes, oil-filled coils generally require from 3 to 5 ­amperes of primary current to produce 20,000-30,000 volts […]

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OBD II Misfire And Diagnosis

When diagnosing misfires, it’s important to use tools that allow you to go beyond a simple code reader that ­displays a P03XX. Even an OEM-level scan tool can’t tell you what the firing voltage is or what the ignition pattern looks like. Nor can it tell you if the ­serial data is accurate or correct. […]

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Tackling Ford TPMS

July 15, 2014

TPMS was standard for the 2007 model year. 2007-’09 models have banded sensors, while most 2010-’11 models have sensors mounted behind the valve stem. If the vehicle has been stationary for more than 30 minutes, the sensors will go into a “sleep mode” to conserve battery power. It will be necessary to wake them up […]

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Finding Electrical Shorts On Multiple Circuits

June 24, 2014

By Scott ‘Gonzo’ Weaver. When I was a kid, I saw a movie called “Juggernaut” with Richard Harris as the main character. It was about a cruise liner that was about to blow up because a terrorist had planted 55-gallon drum bombs all over the ship. The premise of the story line is that Harris was going to save all the people on the ship by defusing the bombs. All through the movie, there were references to the different relays and electrical circuits.

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Parasitic Battery Drains

By Dave Hobbs. Para What? It’s amazing how many IATN posts I see with good techs struggling in the area of parasitic battery drains. How much is too much? How to test? I guess I shouldn’t be amazed. I literally grew up in the family auto electric shop and this kind of thing was our bread and butter. For the rest of the shops out there who have to be experts in everything from the turn signals to the transmission, it can be a bit confusing. So what is a parasitic battery drain?

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Performance Diesel Engine Service Notes

June 11, 2014

Diesel performance is nothing new. What is new is the level of interest in diesels for all kinds of racing; everything from traditional truck and tractor pulling to drag racing, even sports car and endurance racing. Diesels are setting all kinds of records from land speed to elapsed time. So if you’re not already dabbling […]

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