Feature Articles

Tech Tips

Tech Tips

Leaking Fuel Pressure Regulator; Three Bimmer Tips From Bruce; Random Surging Problems; Worn Bushings; Adding A/C Oil; Battery and Cable AVR Test

Subaru Suspension Systems

Subaru Suspension Systems

Subaru vehicles are equipped with either a conventional suspension system or an air suspension system. Both systems utilize McPherson struts as front suspension assemblies. The advantages of Subaru’s McPherson strut-type front suspension are ease of serviceability,...

Hot-Wiring Today’s Car

Hot-Wiring Today’s Car

Cars scuttle along the undulating surface of our planet at the bottom of an ocean of air twenty miles deep. They troll that ocean for its perpetually recirculating oxygen to burn their fuel and continue their scuttling travel. Sometimes their engines need a lot of air, when accelerating or climbing a hill. Sometimes they need […]

Honda Code Breaker Part Three: Fuel Injected Hondas

Honda Code Breaker Part Three: Fuel Injected Hondas

If you’ve been working on and around a single vehicle line as long as I have (Hondas in my case), you’re bound to pick up the subtle nuances that distinguish one vehicle and its systems from the next. Some people call this ‘product knowledge’ and the only way to get it is by piling up […]

Turning and Burning

Turning and Burning

Last month’s “Scoping Out The Problem” described a misidentification of an ignition system that temporarily prevented an accurate diagnosis. The technician Jorge Menchu was trying to help thought he was working on an ignition system that employed magnetic sensors to provide the ignition control unit with crankshaft and camshaft position information. This turned out to […]

Tech Service Round-Up

Tech Service Round-Up

In five years, you’ll look back at the ’99 models and think, “They were pretty simple.” But you won’t think so now. Technology is coming with a rush, and although items related to OBD II still are emerging, a lot more is coming on stream. In addition, a lot of the so-called “routine” underhood service […]

Test Bench: OBD2Scan Software

Test Bench: OBD2Scan Software

Who’s the biggest computer manufacturer in the world? IBM? Nope. Compaq? Sorry, guess again. Dell? Wrong. Believe it or not, the world’s largest computer manufacturer is General Motors.

Scoping Out The Pattern

Scoping Out The Pattern

A sawtooth signal dying into a digital signal? That sounded strange. “Are you sure? What signal is it?” I asked. “Well, it has to be the rpm signal. I’ve scoped every wire at the distributor and this is the only one with a pattern like a magnetic pickup.” After a few more questions, I suspected […]

Honda Code Breaker Part Two: Fuel Injected Hondas

Honda Code Breaker Part Two: Fuel Injected Hondas

In our last installment (February 1999 Import Service), we covered ECU locations and explained how to recover diagnostic trouble codes (DTC’s) from Honda engine management systems. This month we’ll discuss exactly what the codes mean, explain why and how a code can set and identify the high-percentage repair that will usually fix the car. Keep […]

Bank Loan Applications

Bank Loan Applications

One of the pleasures of running a small business is taking the time to get to know people. One of the more interesting people I’ve had the good fortune to know for many years is my friend Steve the llama farmer. When it’s not the growing season (which is very short in the Puget Sound), […]

AC Ripple

AC Ripple

I’d like to talk about AC ripple and dispel some misconceptions about what is it and what causes it. To do this, I will have to teeter along some of the borderlines of electronic theory, and things may seem a bit abstract at first. Please understand my purpose is not to prepare electrical engineers for […]

Grind and Squeal, Growl, Moan and Groan! Them’s the Brakes!

Grind and Squeal, Growl, Moan and Groan! Them’s the Brakes!

On Germany’s unlimited-speed Autobahns and the similar limited-access highways in Austria, Switzerland and Northern Italy, you’ll see (and hear) cars decelerating rapidly from over 150 mph. As those cars bind it down to zero from three-figure Autobahn cruise, there’s sometimes a long, loud brake squeal, a noise the drivers usually ignore.

Circuit Savvy Part Two: Parallel Circuit Resistance

Circuit Savvy Part Two: Parallel Circuit Resistance

Voltage and current in series and parallel circuits are relatively easy to understand because we can use descriptions that are clear and logical. For example, in a series circuit, all components in series pass the same total current (I) and the sum of the voltage drops around a series circuit equal the total applied voltage […]