GM Cruise Control Troubleshooting & Repair Guide 1968-1980 Covering AC Delco Trandsucer: With extra focus on Cadillac Non-Resume Systems

Cruise Control Troubleshooting and Repair Guide. Fix your own cruise! Cadillac Cruise Control 1970-1976. Many GM (Buick, Chevrolet, Chevy, Chevelle, Oldsmobile, Pontiac, some trucks) 1968-1980. Gasoline engine and AC Delco master transducer cruise control and non-resume. Includes many color pictures of installation, troubleshooting, connections, and details of the pieces and parts. Contains many, many insights and tips. Sections attempt to provide more simplistic approaches to repair your cruise while the bulk of the document attempts to cover every problem known by the author and what to do about every one of the problems. There is a special section on solving the cursed hunting and surging. A section on how can you make your cruise control dash green light readable in the brightest daylight. Where can you buy the correct model and what is it you should look for? Tips on how to repair the entire system, even very deep inside the MT (Master Transducer). Covers every problem the author has run across in fixing systems in the vehicle supporting the cruise as well as the MT itself, going deep inside. Coverage of quick and straightforward approaches to bypass the turn signal switch, to determine where the vacuum leaks are and how to fix them. How to plumb and connect virtually everything for cruise. Diagrams and/or pictures of the hookups. Pictures of the most common wear items, how to recognize when it's worn too far and what to do about it. Tearing down an MT and how to restore. The author shares his own failures and mistakes during repairs. Insights and details into how the MT actually works inside. Common failure modes of the system and common failure modes of the MT and what to do. A shortcut approach to getting your cruise working like new. What to expect from these OEM cruise systems in terms of cruising behavior and performance. Definition of terms to help you understand what Cadillac and Delco actually meant in the manuals, much more than what's in the Genuine Service Manual. The state of the industry.Table of Contents1. Disclaimers2. Cautions3. Terms and acronyms4. Who this is written for5. About the author6. Introduction7. Test tools8. A working cruise control system behavior9. Troubleshooting theory10. Proper Vacuum Routing11. Quick Tests12. Options for a working MT13. Theory of Operations14. Common failures15. Top things to check for16. Surging and Hunting17. Bench Testing Tips and Tricks and detailed bench work on the MT18. Troubleshooting19. Repairs and fixes20. Rare failures21. Tuning22. Even Deeper Dive23. Classic Mistakes made that you can avoid24. How to wire a bypass switch to the cruise control push button on the turn signal25. The resume function on other GM models, briefly26. A word on professionally remanufactured Cruise Control MT units27. GM Applications for this guide28. NOS (New Old Stock)29. Speedometer BounceAbout the author: A retired engineer, where he worked in the military defense industry, involved in all sorts of technical development. Now hands-on with his Cadillacs and cruise controls. He has several vintage Cadillacs and he repairs everything in them. He spent hundreds to thousands of hours cumulatively, every day in the pursuit of the understanding of and the restoration of vintage Cadillacs. He tore apart every element in the cruise control systems of Cadillacs from the mid sixties cars to the late seventies cars. He learned what systems in the car had to be fixed and how to do so in order to get an acceptable cruise control experience. Here he captures this knowledge in order to help you out. That's a lot of bench time and lots and lots of road tests!