Snap Test: MAF Sensor Diagnostics
You’d think a service light would be the first indicator of a mass air flow (MAF) sensor problem, but there are times a problem develops with the MAF and no service light comes on. Scott “Gonzo” Weaver explains how poor idle, loss of performance, sluggish performance and even stalling are all associated with a failing MAF sensor.
ASE A1 Test Prep: Cylinder Heads and Gaskets
Passing the ASE A1 can be difficult. Do not go into this test with the notion that this is an exam for engine rebuilders. Many of the tasks in the A1 task list are required every day at a general repair shop for top-end engine repairs. Here are some tips.
A/C Compressors Take A Pounding
The A/C compressor is a pump that compresses and circulates refrigerant within the A/C system. Some have pistons inside while others have rotating vanes on an eccentric or a pair of metal scrolls or spirals around an eccentric. Many late-model vehicles have “variable displacement” compressors that change the piston stroke to increase or decrease the volume of refrigerant flowing through the system. Some of these run continuously instead of cycling on and off like conventional A/C compressors.
Tech Tip: Help Extend The Life Of A Vehicle With Engine Cleaning System
For repair shop professionals and vehicle owners who want to properly clean and protect engines, follow the steps in this Tech Tip.
Shell V-Power ‘Fuel My Passion’ Contest and Sweepstakes Rewards Vehicle Lovers for Sharing Their ‘Passion’ for Their Rides
Are you one of those people who affectionately names your car, talks to it when no one else is around or reads your owner’s manual for fun? If you or someone you know has a special bond with their luxury or sports vehicle, motorcycle, truck, RV or any other premium ride, Shell invites you to share how Shell V-Power fuels your passion for your ride in the Shell V-Power “Fuel My Passion” Contest and Sweepstakes.
Diagnosing A/C Systems with Automatic Climate Control
Diagnosis is often the biggest challenge, especially if the cause of a no-cooling problem is not obvious. Is it the refrigeration circuit, an electrical problem or a control issue?
Management: ‘Win-Win’ Repair Examples Can Positively Impact Customer Education Efforts and Your Bottom Line
In the process of educating customers, if you could show the link between proper repairs and vehicle performance and longevity, compared to vehicle neglect and its negative impact on critical components, you’d be able to heighten your customers’ trust in your repair recommendations and comfort level with the repair process.
Shell V-Power ‘Fuel My Passion’ Online Contest Drives Consumers to Share ‘Love Stories’ About Their Rides
Enter to win a year’s worth of Shell V-Power Premium Gasoline and a 2010 Harley-Davidson Fat Boy Lo Motorcycle.
Tech Feature: Servicing Ford’s 3.0L Engine
The 3.0L Duratec V6 was introduced in 1996 to replace the aging 3.8L V6 in the Ford Taurus and Mercury Sable. Unlike its conventional pushrod predecessor, the 3.0L V6 has dual overhead cams, four valves per cylinder and an aluminum block with cast-iron cylinder liners.
Automotive Fluid Exchange Equipment
Vital fluids – including engine oil, coolant, transmission fluid, gear oil, power steering fluid and brake fluid – need to be replaced periodically. Technical Editor Larry Carley discusses the equipment and tools necessary for the preventive maintenance essentials.