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Understanding Vehicle Voltage Drop

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Testimonials

Here is what others have had to say about Joe Glassford and his teaching::

I would like to personally recommend that Joe Glassford continue to instruct classes for General Motors.  The manor in which he teaches is, "Obtainable knowledge for every type of student". He has vast knowledge of vehicle electrical and mechanical, instructing on electronic properties and their interaction with mechanical functions.

I have had numerous instructors throughout my education and believe that Joe Glassford is one of the best instructors.  Continuing education is one of the keys to a better quality product. Learning is the purpose of in house training.  This obligation falls completely upon the instructor.  His importance in helping to bring knowledge, taught in an understandable and retainable format needs to be acknowledged for an outstanding job.

J.S.C., Apprentice Advanced Prototype
Vehicle Builder, GM - Pontiac

, MI

Joe Glassford displayed the highest level of professionalism and performance. Course overall was excellent.  Thanks for the knowledge.

TC
GM training center - Hinsdale, IL


Joe's teaching methods made the course outstanding because of the day to day related experiences in the shop.  

Student at seminar conducted
@ Central Oregon Community College, Bend, OR


Sorry it has taken me so long to get back to you but I wanted to let you know that your book was such a great help to me.  I am now not afraid to tackle diagnosing electrical problems.  You've taught me more than my teachers at school.  Thanks for putting out the book! Juan


Ok Joe, I was skeptical, but with a first name like yours,
you must know something. Then I got to thinking about what I
read on your web site and I thought that it made sense, but
your numbers are obviously too high. So out to a truck I
went using the blower motor circuit as a test. Running it on
the lower speeds and confirming the amperage draw with an
ammeter, I found your numbers to be very, very close. I
would have never thought of using voltage drop across a fuse
to approximate the amperage in a circuit. With your chart,
it is a very quick test.

Congratulations for thinking out of the box (and making me
think).

J A
Educator/Instructor
Portland, Oregon, USA

 

 

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Copyright © 2006 Joe Glassford
Revised --November 1, 2006 Friday, January 29, 2010 9:32 PM
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