A practical approach to auto repair shop management.
Mastering the Numbers
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HOT OFF THE PRESS
How Often Should You Really Flush Coolant? (VIDEO)
How do you know when it’s time to flush coolant? Technicians may have different views on the subject, but Dorman Training Center instructor Pete Meier explains how using a test strip at every service is a surefire way to get an accurate picture of the coolant’s health.
Colin Chapman: The Philosopher of Motion (Part 1)
This British engineer changed racing forever by making cars lighter, not more powerful.
Maximum Voltage Reading – ASE Practice Question (VIDEO)
Technicians debate using the min/max function of a digital voltmeter to test the battery and charging system on a customer’s vehicle to determine if the alternator has failed. Who is correct?
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SHOP STUFF
Auto care news and advice you can use.
Service Writers: Don’t Leave Your Greatest Diag Tool in the Shop
Techs can’t solve the problem that can’t be found
When a Voltmeter Isn’t Enough (Video)
Many high-end scan tools come with a capable digital storage oscilloscope. Time to put that tool to work.
Which Is Faster: A Spark Plug Firing or a Fuel Injector Spraying? (VIDEO)
Did you know that a modern fuel injection system can fire off multiple sprays in the same time it takes for a spark to jump across a plug?
P0420/P0430—The #1 DTC in the Country
And the most misdiagnosed.
Troubleshooting Fuel Trim–ASE Practice Questions (VIDEO)
Technician A and Technician B are discussing ways to use fuel trim as a troubleshooting aid. Technician A says that fuel trims that are correcting for a lean condition at high RPM and load conditions indicates a problem in fuel delivery. Technician B says that this condition is caused by a vacuum leak.
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SHOP STUFF
Auto care news and advice you can use.
Tool Review: Permatex 25240 Thread Locker
Can there be one threadlocker color to rule them all?
Are You Properly Checking Hub Bearings For Wear? (VIDEO)
Pete Meier explains how a dial indicator is necessary for a true wear check.
Efficiency is the Name of the Game
Four proven ways to run a tighter ship at your shop.
Misfire Cause–ASE Practice Questions (VIDEO)
Technician A is diagnosing a misfire. He states that a misfire is caused by a fault in the ignition system and that new plugs and coils will repair the problem. Technician B says that a misfire is detected when the ECM detects a variation in crankshaft speed.
A History of the U.S. Presidential State Car (Part 2)
The commander-in-chief’s road transportation, from LBJ’s Lincoln Continental to “The Beast.”
VIDEOS
Diesel Engines and Racing
You may be surprised at how diesels have made a name for themselves in motorsports.
Recovering A/C Refrigerant-ASE Practice Question (VIDEO)
Technician A is preparing to recover the refrigerant from a customer’s vehicle. What are the steps he should take when performing this service?
The Folded Paper Era and Beyond: Giorgetto Giugiaro’s Iconic Design Journey
Giorgetto Giugiaro influenced everything from groundbreaking supercars to beloved city vehicles.