Articles by Mike Mavrigian

6.4L Powerstroke Diesel Fuel System

6.4L Powerstroke Diesel Fuel System

As you know, a diesel engine differs from other liquid fuel engines in one major respect: the fuel/air charge is ignited by cylinder pressure and resulting heat, instead of via an electrical ignition system (diesel-fueled engines don’t use spark plugs).
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A Turbocharged Pet Peeve

A Turbocharged Pet Peeve

I hope I’m not alone in this. One of my pet peeves is the all-too-common misuse of the term “turbocharged.” It seems as though manufacturers of just about any product feel that they can freely apply the term to promote the benefits of a host of consumer offerings.
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Diagnosing Steering System Noises

Diagnosing Steering System Noises

The most common cause for power steering noise is low power steering fluid level. The resulting noise will likely be a whining that is heard when turning the steering wheel. A high-pitched or “screeching” noise is usually caused by a worn or misadjusted power steering drive belt.
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Cooling System Service: Common Sense Guidelines for Covering the Variables

Cooling System Service: Common Sense Guidelines for Covering the Variables

Generally speaking, a 50/50 mix of water and “antifreeze” is the recommended norm. However, when mixing concentrated antifreeze with water, avoid using tap water, as this may contain excess calcium or other materials which can promote corrosion. Use only distilled/deionized water for the mix. Granted, some coolants are available as 50/50 pre-mix that eliminates the need to add water.
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Thank You Means a Lot

Thank You Means a Lot

Vehicles enter the shop. Some customers require routine maintenance. Some customers complain about driveability issues. The brakes squeal. They hear a clicking noise on turns. The engine cranks but won’t start. The tires are wearing out fast. The car pulls to the left under braking. The engine is leaking oil. The list goes on.
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Taming Alignment in Winter

Taming Alignment in Winter

Proper wheel alignment is obviously important in terms of preventing premature tire wear, and to maintain predictable and controllable handling and braking. But in winter weather, where the customer encounters slippery conditions, wheel angles become much more critical. The effect of improper toe, camber and/or caster angles becomes more pronounced and are compounded as the coefficient of friction between the tires and the road are reduced.
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Luxury Car and High Performance Brakes

Luxury Car and High Performance Brakes

Premium-priced high-performance luxury cars tend to push the envelope in terms of braking system performance. While a disc/drum or disc/disc system found on any production vehicle is designed to provide safe and reliable braking, luxury performance cars tend to be outfitted with “spirited” driving in mind. As engine power increases, accompanied by the potential for higher speed operation, there’s more demand on the brake system, requiring the system to meet these challenges.
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Wilson’s Garage: Modern Technology with Country Pride

Wilson’s Garage: Modern Technology with Country Pride

Wilson’s Garage has been a fixture in Pfafftown, N.C., since 1950. Nestled in the hills that overlook the picturesque Yadkin Valley, about 35 miles south of the Virginia border and northwest of the bustling Winston-Salem area, Pfafftown was founded back in 1786. Since the shop opened its doors, it has earned an extremely loyal customer base that extends well beyond the borders of its classic “small town America” location.
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Tool Review: Steelman RT-4000 Pro -- A Combination Scan and Reset Tool That Does Not Disappoint

Tool Review: Steelman RT-4000 Pro -- A Combination Scan and Reset Tool That Does Not Disappoint

JS Products has recently released its new Steelman RT-4000 Pro “reset” tool. In addition to the capability to serve as a DTC scan and clearing tool (for 1996 and newer vehicles) via OBDII and CAN bus protocols, this nifty hand-held device allows you to easily reset service and maintenance-alert messages for battery, oil and service lights and to properly perform electronic parking brake service.
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Tool Review: OTC's Drain Plug Pro Tool Kit

Tool Review: OTC's Drain Plug Pro Tool Kit

Engine oil changes are a part of any shop’s routine. As we all know, one of the bothersome aspects of draining the sump involves hot, grimy, dirty, slimy oil oozing out all over your hand while removing the pan’s drain plug. Finally, someone took the time to develop a specialty tool that eliminates the mess.
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Shop Equipment: Lifts, Tools and Accessories

Shop Equipment: Lifts, Tools and Accessories

Outfitting your shop with all of the tools and equipment necessary to address current and future service requirements is a never-ending task, as vehicle designs change and as you strive to increase your shop’s productivity. Here we provide examples of innovative tools and equipment to consider.
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Emergency Ignored?

Emergency Ignored?

It should be standard practice to perform an overall inspection of every customer’s vehicle when it enters the shop, regardless of what specific repair prompted the visit. Inspections such as checking fluid levels, tire wear, belt condition, a visual inspection for leaks, loose or badly worn steering and suspension parts, a brake pad and rotor check, etc., should be included, as a pre-emptive strike to alert the customer to any issues that require immediate or not-too-distant attention.
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