Diagnostic Solutions: Throttle Position Sensors
Although conventional throttle position sensors attached to the throttle shaft are considered basic technology on modern engine management systems, the conventional throttle sensor plays an important role in its relationship with other sensors. The voltage inputs of most throttle position (TP) sensors may, for example, be coordinated with the barometric pressure (BARO), manifold absolute pressure
AftermarketUpdate
New Automatic Transmission Fluid for 2006 Cars and Trucks Pontiac, MI — GM, in conjunction with Petro-Canada and Afton Chemical Corporation, have developed a new, improved automatic transmission fluid for all 2006 model year Hydra-Matic automatic transmissions. Developed for factory-fill as RDL-3434 and registered for service fill as DEXRON-VI, the new fluid represents a significant
Servicing Maintenance-Friendly VW Engines
Volkswagens have always been maintenance friendly. From the very first models, ease of repair and durability have been built into the design. VW has managed to keep basic maintenance procedures relatively uncomplicated throughout the years. In this article, I’ll cover some of the more common underhood procedures on common VW models and include some tips
Top Five Tools
Ron Promisson, owner Promisson Automotive Service Center Bushnell, IL Power Probe II — This is an indispensable tool for all kinds of diagnostic problems. Probably the one tool I couldn’t do without. Raytek AutoPro ST25 Infrared Thermometer — This is another favorite that can be used for many different applications. Snap-on Vantage — The diagnostic
Detroit Diesel Corporation Launches Redesigned Website
Detroit Diesel Corporation recently announced that it has launched an updated website that features enhanced details on its three engines: the Series 60, MBE 4000 and MBE 900, as well as information and specifications regarding its proprietary axles and transmission products.
Automatic 4WD Hub Replacement
Automatic hubs are used on many 4×4 trucks to disengage the front wheels when four-wheel drive is not needed. Disconnecting the front wheels reduces friction and may improve fuel economy as much as one mile per gallon depending on the vehicle. A one mpg difference may not sound like much, but with gas costing around
Making Sense out of Sensors
Sure, you may be familiar with some basic sensor operation. But as an automotive technician, you may not really understand all of the ins and outs of many common sensors. Do you really understand how they work, how the PCM views them and the possible scan tool and DVOM results when things go wrong? If
Genuine Subaru Remanufactured Parts Meet Stringent OEM Specifications
Why take chances with your customer’s Subaru? Genuine Subaru Remanufactured Parts are remanufactured by Subaru suppliers to perform as well as original installed parts, and to meet the latest, most stringent OEM specifications.
Subaru Tech Tip: Correct Axle Ratios
The customer has brought his vehicle in complaining about a shudder when turning (rear axle binding). He tells you that the problem has occurred since the transmission or rear differential was changed. This could be caused by an improper front-to-rear axle ratio match.
Tech Tip: Are You Testing Your Customers’ Brake Fluid?
When was the last time you tested a customer’s brake fluid? Never? Many shops don’t bother to test brake fluid for several reasons. Some don’t think fluid tests are necessary. Others don’t test the fluid because they don’t have anything to test it with. And others say why bother if they’re going to bleed the brakes after relining the brakes?