Mufflers & Exhaust Systems Exchanging Stock for High-Performance
High-performance mufflers and exhaust systems are as much about looks and sound as they are about horsepower. Most customers who want these types of products want mufflers and exhaust systems that look and sound as good as they perform. It’s all about personalizing their vehicle and projecting an image. Customers who buy performance exhaust products
News: Underhood Service
CARQUEST Selects 2004 TECH-NET Professional/ASE Technician of the Year Raleigh, NC – Richard Robb of Elkhorn, WI, has been named the 2004 TECH-NET Professional/ASE Technician of the Year. Owner of Hi-Tech Automotive, Robb is an ASE-certified master automobile technician with L-1 certification. He was selected for the award after meeting the criteria set by CARQUEST
GM Timing Belt & Chain Service
Some overhead cam engines in General Motors vehicles use timing belts to drive the cam (the 2.0L for example), some use chains (2.3L Quad Four, Cadillac’s Northstar dual overhead cam 4.6L V8, the Aurora Northstar 4.0L V8 and Chevy’s Vortec 4200 inline six), and some use a combination of both (Chevrolet’s 3.4L V6). The rest
Diagnostic Dilemmas: Playing the Diagnostic Shell Game
More often than not, deciphering diagnostic trouble codes is like playing a high-tech version of the old circus sideshow “shell” game. In the trouble code shell game, we are led to believe that the pea (diagnostic solution) is hidden under one of the shells (DTCs) stored in the diagnostic memory. Unfortunately for the diagnostic technician,
CO2 Systems Will Breathe New Life Into A/C Designs
SAE to work with the industry and the EPA to create efficient, environmentally sound automotive refrigerant systems, but how will it affect technicians and repair shop profits? The Society of Automotive Engineers (SAE) recently announced a cooperative research program that will work with the industry and the U.S. Environmental Protection Agency (EPA) to develop and
BMW Performance Upgrades
When you talk about performance cars, a list of several manufacturers comes to mind. Before the explosion of Asian-made mini rockets, you needed to go European, and specifically German, to get the latest in performance machines. BMW has been the performance marque of choice for several decades. While BMW makes it difficult to improve on
Underhood Service: Troubleshooting Troublesome Injectors
Clean fuel injectors are a must for peak engine performance, fuel economy and emissions. If the injectors are dirty and can’t deliver their normal dose of fuel, then performance, fuel economy and emissions are all going to suffer. Dirty injectors can’t flow as much fuel as clean ones, nor can they deliver the correct spray
Carburetor Repairs & Recalibrations
As a follow-up to “Dusting Off Fuel System Fossils” in April’s edition of Underhood Service, I will share many driveability concerns and emissions failures that I’ve repaired by rebuilding, and sometimes modifying, certain carb circuits. But before diving into a carburetor rebuild or recalibration, be certain that you understand the system you’re working on, including
Confronting the Complete Cooling System Service
By now, it’s obvious to most service shops that cooling system service is an absolute “must-do” on any nameplate. Once a cooling system suffers long-term neglect, it turns into an ongoing source of problems for the owner and his service technician because, when corrosion starts to take place, the effects can’t be reversed. For that
Thermostat Technology
Although the humble thermostat isn’t generally considered to be a “high-tech” component, it continues to serve a number of very critical functions in the modern, computer-controlled import vehicle. To better understand these functions, let’s first consider that carbon and water are two major by-products of internal combustion that accumulate in an engine’s motor oil. Unfortunately,