underhood service Archives - Page 86 of 86 - TechShop Magazine
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

Salem on Service: Handling the Damage in the Shop

Mrs. Smith’s car is being backed out of the bay after an oil change and Joe, the driver and tech, hits the wall with the car. The wall is fine, but the same cannot be said for Mrs. Smith’s car. I would never suggest that my way is the only way, but here is how

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,

American Honda Announces Launch of Online Parts Catalog and Ordering System

Torrance, CA – American Honda recently announced a new online parts catalog and ordering system provided as an enhancement to its Service Express website. The Service Express website, available to independent repair facilities on a subscription basis through participating Honda and Acura dealers, provides service and repair information for every OBD II-equipped Honda and Acura

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

Flash Reprogramming

Would you believe flash reprogrammable PCMs have been in vehicles for more than a decade? The first such application was the 1990 Geo Storm. Why a humdrum car like the Storm would be the first to receive a flash reprogrammable computer system is unknown. You’d think GM would have chosen a more high profile vehicle

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