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Stories from the Road 7

(A Narrative About Modern Automotive Diagnostics)

An Automotive Case Studies Series

By Mandy Concepcion

This book, "Stories from the Road - Automotive Case Studies" is a real work in action about the intricacies of modern automotive diagnostics. It is based on actual real life situations. From this book you may extract real-life lessons, which will help you as an automotive aficionado, DIY mechanic and professional technician. The work is divided into narrated stories representing real-life applications of diagnostic technology, equipment usage, repair techniques and knowledge based information. Here, you'll get input on how to use the automotive scan-tool, OBD-2 ECM/PCM readers, oscilloscope, graphing multi-meter, signal tone injector and many other diagnostic tools. You'll also get deep insights on testing all kinds of sensors and actuators, such as injectors, solenoids, transmission components, motors, fuel pumps, CAM and crank sensors, TPS, MAF, Knock and pretty much every component seen today. All the content is presented on a narrated, story like format to make the knowledge easy and fun to comprehend. With that in mind, enjoy your readings.

Table of contents

Stories from the Road 7

* - Oil Drowned Dakota

Rich running Dakota with erratic Fuel-Trims is this case in diagnostics. The shop replaced O2 sensors, did complete tune-up but to no avail. Delve into this video and learn about using the trusty 5 Gas Analyzer and the scanner. Also learn about O2 signal interpretation presented with state of the art diagrams and animations.

* - Parallel Universe 4T60E Transmission

Get into the world of electronic transmission diagnostics using a myriad of automotive equipment. Understand the operation of modern transmissions from these special diagrams and animations. And, when all fails then use the Clamp-On AMp probe to get to the bottom line and root cause of the issue.

* - Reverse Polarity FORD F150

An ignition problem that wouldn't go away on a Ford F150. This COP or coil-on-plug ignition was a tough one. The video goes through the use of various equipment as well as reading very detailed ignition waveforms, with animations.

* - Robo Techs Cousin GM Passlock Bypass

The "Security" light was on on this GM antitheft system. At first there was no problem with the engine, but then it all went haywire. Get the insight on this particular case in bypassing the antiquated GM passlock from the past.

* - Saab 9-5 Trionic with Hiccups

Wow Trionic, it sounds complicated, and it is. The issue was an intermittent hickups to the engine. Get an insight on this system found on many vehicles today made by Bosch. Get the whole story right here with the latest in CG animation and waveform reading.

* - Safari with Faulty Pick-Up Line

A case all about misfires and the complexity of finding a pesky one. But things got hot when a bunch of parts were replaced and nothing changed. See this entire diagnostic path from scanner, scope, reading signals and assessing the situation.

* - Speedometer Volume Control

With todays electronic dashboards, repairing a speedometer issue is not like your grandfather's Oldsmobile. Follow this VSS or vehicle speed sensor "Digital" signal to all the respective modules, including the Radio. Yeas, even the Radio uses the VSS, but why? See this curious case and learn that appearances can be deceiving.

* - BONUS - Mass Air Flow Hot Film Circuit

Get an inside look at the MAF circuit in operation. This article is an in-depth advanced electronics analysis of the MAF. It is complete with the appropriate wiring diagrams to make you understand the subject.