As we learned in Part One of this article (Import Service, June 2000), we owe Georg Simon Ohm a debt of gratitude for the electrical principles he published in 1827, which later came to be known as Ohm’s Law. These principles explained in mathematical form the relationship of voltage (E), current (I) and resistance (R) […]
A lot more goes into running a successful automotive repair shop than simply renting some space and hanging out a sign. At least some time must be devoted to attracting and keeping customers. This activity can be loosely described as “marketing your business.” Perhaps you have experimented by buying a Yellow Pages ad, subscribing to […]
For so long and so often, you’ve heard R-12 supplies are running out, you’ve probably stopped believing it ever will happen. EPA officials at the Mobile Air Conditioning Society (MACS) 2000 convention don’t blame you, but they say they have hard numbers now and suggest this summer will be the last with enough R-12. The […]
How far is it from that foam on the cap to rings and bearings? A cheery thing to find first thing in the morning – a little blob of oily foam inside the radiator filler cap. But my immediate alarm seemed overdone because there was no corresponding soap foam in the crankcase oil. Whew! No […]
The oxygen sensor has to be one of the most important sensors on a modern automobile. It helps the ECM maintain the optimum air/fuel ratio for effective catalytic converter operation, and with the advent of OBD-II it monitors the effectiveness of the converter as well. The main oxygen sensor lives in one of the harshest […]
Business computer programs are like lab scopes: You don’t need them if common sense gives you the answer, but there’s no substitute for them if the problem is complex. They can also be confusing and intimidating, and they work best with a suite of plug-in attachments. Yet they’re powerful tools around once you’ve mastered them. […]
A coil atop every spark plug. OK, it’s easy enough to see it’s possible. But the question is, why is this a reasonable way to set up an ignition system? Obviously, it costs more to build and buy (as well as to diagnose or fix) than any other kind of ignition system, but what are […]
