GM has increased their market share of the light truck diesel market since introduction, in the 2001 model year, of the Duramax 6600.  The early Duramax 6600s are now off manufacturer’s warranty and there are aftermarket repair possibilities now available.  This presentation will concentrate on the design and operation of this popular engine as well as a review of the GM 6.5 diesel that the Duramax 6600 replaced.  Relevant Technical Service Bulletins and common problems will be highlighted. 

 COURSE OUTLINE

1. Introduction
2. Acronyms
3. Overview 
4. GM 6.5 Diesel Review
   • Construction
   • Operations
   • Common Problems 
5. Engine Construction & Specifications
   • Description of each Regular Production Option code
   • Changes by model year
   • Common problems
   • TSBs
6. Bosch common rail fuel system
   • Construction & Operations
   • Changes through model years
   • Common problems
   • Regular maintenance
   • TSBs
7. Intake System (including Turbocharger)
   • Design and operations
   • Changes through model years
   • Common problems
8. Electronic Engine Control
   • Operation including inputs and outputs
   • Changes through model years
9. Appendix

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