GM’s Autronic Eye (1952)
In 1952, GM introduced the Autronic-Eye headlight system that dimmed the high beams when an oncoming vehicle was detected, and then turned them back on when the opposing vehicle passed. The system used a light photosensor mounted in a vacuum tube. The system would then amplify the signal using a tube amplifier so a relay could turn the lights off or on.
Inspecting Fuel Tanks For Filter Clogs
Any number of things may cause a fuel filter to plug up. One is a rusty fuel tank. Steel fuel tanks are coated inside with a special “tern” plating to resist corrosion. Over time, the protective plating can wear away and expose the steel, making it vulnerable to corrosion. Water in the fuel accelerates the process.
AUDI: Start-Stop System Information
This informational TSB applies to Audi vehicles with a start/stop system. The start/stop system allows automatic engine stops and starts. Although the driver expects it, the engine may not automatically be switched off due to many different factors.
Trusting Your Torque Wrench
The torque specifications for components are much more exact now. Fastener requirements are also changing such that nuts and bolts are more vehicle specific, so there is no more running to the backroom if you need a replacement.
Diagnosing V8 Engine Leaks
You already know that there are plenty of BMWs with V8 engines on the road today, but you might be surprised that they can have issues with oil leaks. Inevitably, some of these will find their way to your shop in need of service, so here are some common items to be aware of when they arrive at your shop for repairs. In this article, I will focus on valve covers, the front upper timing chain covers and the alternator bracket gasket.
Sealing Modern Water Pumps
Over the past 20 years, we have seen water pumps and cooling systems evolve to improve start-up emissions. We have also seen a revolution in the material used for engine blocks, cylinder heads and cooling system components. Today, coolant may flow through an iron block, aluminum cylinder head and plastic thermostat housing.
Cooling Fan Assemblies Save Time And Simplify Repairs
When your customers start coming in for cooling fan issues this summer, your business will heat up fast. Before tackling these problems by trying to repair or replace the individual fan motor, consider replacing the entire cooling fan assembly. You’ll eliminate a lot of unnecessary steps, hassles and probably unbillable labor.
Torque Converter Basics
The concept of using a torque converter, oil pump, planetary gear sets, clutches, bands and a computer-controlled hydraulic valve body to transmit torque and to change gear ratios is relatively simple. The torque converter allows the engine to idle in gear with the vehicle stopped and multiplies engine torque during the initial stages of acceleration.
Direct Injection Diagnostics: Taking Pressure Readings
Direct injection is becoming standard on more and more late-model vehicles. These systems can be a diagnostic challenge, but with the right foundation, problems can be solved profitably.
Inside Throttle-By-Wire
A simple cable linking the gas pedal to the throttle plate just wasn’t good enough for engineers, who have now complicated the design with throttle-by-wire.
Getting Involved To Nurture The Next Generation of Techs
Rather than looking for a senior technician, how about bringing in one of these recently graduated techs? The good ones will demonstrate that they are eager to learn. You may find that one of their previous employers put a broom in their hand rather than a repair order, so you could be their lifeline to a long and thriving career.
VIDEO: Three Tips For Your Next Oil Filter Job
Andrew Markel shares three tips to make sure your next oil filter installation job goes smoothly and prevents a comeback. Sponsored by Auto Value and Bumper to Bumper.
