Oil Change Intervals
Contaminants Can Be Engine Killers Contaminants tend to accumulate in all engines as the miles add up. Short-trip, stop-and-go city driving, as well as excessive idling, accelerate the rate at which these contaminants form. Changing the oil and filter regularly and using gasoline that contains an adequate amount of detergent to keep the fuel system,
A/C Update
Once a year the Mobile Air Conditioning Society (MACS) hosts a trade show for A/C shop owners and technicians. This year’s event was held in Orlando, FL, January 22-24, and provided a wealth of service information to those who attended the technical sessions. For those who could not be there, we pass along some of
Aftermarket Update
Trade Press Gets First-Hand Look During Tour of Bosch’s State-of-the-Art South Carolina O2 Sensor Plant Oxygen sensors are one of the key sensors in every engine’s fuel management feedback control system. Consequently, O2 sensors play a vital role in maintaining low emissions, good fuel economy and peak performance. Developed by the Robert Bosch Corporation, O2
Understanding Today’s Multi-Coil Ignition Systems
Distributorless Ignition Systems (DIS) have been around for more than two decades, but in recent years the trend has been to multi-coil systems such as Coil On Plug (COP) or Coil Per Cylinder (CPC) ignition systems, and Coil Near Plug (CNP) ignition systems. COP systems have become the hot setup for a number of packaging,
Driveability Series: Ford Water Pumps
An owner of a Ford vehicle is at your shop to have an oil and filter change. During the service, you notice a little coolant is leaking from the vehicle’s water pump. So, do you replace the pump or is a little coolant dripping normal? Well, the answer depends on how much coolant the pump
Sensing an Emissions Problem
Oxygen sensors are a product that have been around for more than 20 years, yet most motorists don’t even know they have one or more of these devices on their vehicle – let alone what it does. The only time customers even become aware of oxygen sensor existence is if they get a Check Engine
Volkswagen Underhood Maintenance & Service Tips
Volkswagens have always been maintenance friendly. From the very first models, ease of repair and durability have been built into the design. VW has managed to keep basic maintenance procedures relatively uncomplicated throughout the years. In this article, I’ll cover some of the more common underhood procedures on common VW models and include some tips
Analyzing Ignition Misfires and Plotting a Diagnostic Course
Uh oh. The Malfunction Indicator Lamp (MIL) is on, and you’ve just found a misfire code. It’s a code P0304, which tells you cylinder number four is misfiring. There are no other codes and the engine has a steady miss. Now what? Misfire diagnosis in this kind of situation should be fairly easy. You have
Cooling Off: Cooling System Parts and Service
Cooling system service is an absolute “must-do” on any import nameplate. Once a cooling system suffers long-term neglect, it turns into an on-going source of problems for the owner and his servicing technician because, when corrosion starts to take place, the effects can’t be reversed. For that single reason, it’s important to sell your customers