The Fuel Injector Market and System Configurations
Looking back into automotive history, it’s hard to believe that carburetors were still being installed on import vehicles as late as 1989! But carburetors require all sorts of external vacuum and electronic gimmickry to control the cold-starting, fast idle, hot idle and low-speed cruise functions. Electronic fuel injection has since replaced carburetors in all import
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,
How Engine Oil Becomes Engine Sludge
Fresh engine oil is a clear, free-flowing liquid blend of base stock and additives that contains no fuel, water, coolant, dirt or other contaminants. In engines that have failed prematurely, the oil has very often been transformed into a high viscosity deposit of brown or black goo, commonly referred to as “sludge.” When regular engine
Getting “Tuned” Into Exhaust System Service Opportunities
Although stainless steel exhaust systems have reduced the number of exhaust system replacements, it’s important to remember that regular exhaust system inspections remain an integral part of import service. When inspecting an exhaust system, remember that the exhaust pipe and muffler must: Help “tune” the engine for peak performance; Reduce noise to legal levels;
MACS Show: Technical Session Coverage
Once a year, the Mobile Air Conditioning Society (MACS) hosts a trade show for A/C shop owners and technicians. This year’s event in Orlando, FL, provided a wealth of service information to those who attended the technical sessions. For those who couldn’t be there, we pass along some of the highlights from the technical sessions.
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ls, appear to be the next generation of fuel injection for gasoline engines. The reasons for implementing this technology are legislative, and also include market requirements that drive the need to reduce fuel consumption, while at the same time, meet the increasingly stringent exhaust emissions regulations. According to engineers at Delphi Corp., gasoline direct injection
Selling Multi-Coil Ignition Parts
Time has indeed passed you by if you still believe in the traditional import engine tuneup. Many years ago, much of the import service market revolved around the annual spark plug, ignition cable, distributor cap and rotor replacement needed to maintain an import engine at peak efficiency. During the past decade, however, multi-coil waste-spark and