Welcome to Randy's Repair Shop
Welcome students, instructors, and do-it-yourselfers to Randy’s Repair Shop. This site is devoted to making automotive electrical systems understandable. Technicians with strong electrical diagnostic skills are in great demand in every community in the nation. Electrical theory is also one of the most difficult subject areas for automotive students to master, partly because we are most comfortable learning what we can see, touch, disassemble, and manipulate.
The material presented here was developed over a period of nine years and used in a community college Automotive Technology program with very high success and student satisfaction. Our program enjoyed a reputation in our community of graduating people who could be successful entry-level electrical diagnosticians without the need for additional on-the-job training.
There are three general areas covered here. On the top of this page are links to generator and starter diagnosis and repair of the most popular domestic systems. These systems were chosen because of the high probability of successful repair by a careful do-it-yourselfer, and their readily available inexpensive replacement parts. One section of this site links to student reference material. The information and troubleshooting hints are meant to compliment your textbook reading assignments, not replace them. Students are expected to already have an understanding of basic electrical theory and automotive electrical systems.
The third section is only available to instructors. A complete curriculum package is available including a syllabus, grading policy, worksheets, notes pages, final exam, and quizzes. More information on how this course was delivered is presented in the “Instructor Resources”. The final part of this section details how to build “bugged” cars with real-world problems for student troubleshooting exercises. These are real popular and inexpensive projects, ideal for under-funded high school programs. Complete instructions, with photos, can be transferred to a number of similar vehicles. Also included are standard manufacturer’s schematic diagrams with notations and troubleshooting hints. Everything can be printed in MS Word, and modified as desired.
Reprogramming the Chrysler HVAC Computer