Radiator Diagnostics & Troubleshooting
Although radiators aren’t glamorous, high-tech replacement parts like wide-band oxygen sensors and Karman-Vortex air flow sensors, diagnosing and replacing them when they become defective is becoming a more important part of vehicle maintenance today. There are at least three reasons why radiators are becoming important maintenance items. First, late-model vehicles are now being driven well
Ford Timing Belts & Chains
Timing belt and chain replacement is one service that isn’t going away any time soon. Most Ford engines with overhead cam timing belts have a recommended replacement interval of 60,000 miles to 120,000 miles depending on the application (see the chart on page 54). So if a customer is driving a vehicle that is more
Diagnostic Dilemmas: Driving Forces Behind a Driveability Technician
He used to be known as the tune-up guy, the shop troubleshooter or the ace mechanic. Today, he’s known as a driveability tech. Tomorrow, when body control electronics come on full line, he’ll probably be known as an electronics diagnostics technician. Whatever his name might be, most of us know that driveability techs are smart,
10 Tips on Head Gasket Tightening
The installation of gaskets is one of the most important aspects of rebuilding an engine. Gaskets provide a seal between mating surfaces so oil, coolant, vacuum and pressure don’t leak. As long as all the gaskets are installed properly, everything should be fine, and the engine shouldn’t leak. But, as every rebuilder or technician knows,
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.
Chrysler Neon 2.0L
When Chrysler introduced their new Neon models back in 1995 under the Dodge and Plymouth nameplates, they said they were launching a new generation of “fun-to-drive” entry-level cars that would appeal to a wide range of people. Everything was new about the Neon: a brand new body, a brand new chassis and two new engines,
OBD II Diagnostics:Tips And Tricks to Make the Process Easier
The Malfunction Indicator Lamp (MIL) can be a golden light of opportunity for your shop. If the light comes on, it means the Onboard Diagnostics II system (OBD II) has detected an emissions-related problem. OBD II is designed to turn on the MIL if a problem occurs that may cause emissions to exceed federal limits
Mass Air Flow Operation Strategy
When diagnosing hot-wire air flow meters (A/F meters) on Subarus and similarly equipped Asian vehicles, technicians may find that, while the meter passes all recommended test procedures, the engine exhibits driveability conditions associated with lean air/fuel mixture ratios. In these cases, it’s best to form a diagnostic strategy based on the relatively simple operating principles
Understanding Operating Strategies
As driveability technicians, we’ve been taught to solve diagnostic problems by gathering and analyzing data. Data usually comes in three basic forms, the first of which is sensory data that we can see, hear, smell or feel. The second form is measured values gathered by using test equipment like lab scopes and multimeters. The third
News: Babcox Memorial Scholarship Applications Now Being Accepted
Bedford, TX — The Automotive Management Institute (AMI) is calling for applications for the 2004 Tom B. Babcox Memorial Scholarship. AMI’s resource development effort, EXCEL, in conjunction with Babcox Publications, established the $1,000 scholarship, which is awarded annually to an Automotive Service Association (ASA) Mechanical Division member who strives to be, or is presently, working