Duramax 6.6L L5D Engine Diagnostic Manual


Covers: International/Duramax 6.6L with L5D engine code

  • Equipped in Chevy Silverado medium duty and International CV trucks

Pages: 933
Format: PDF download
File size: 3mb
Compatibility: Windows/Mac/Mobile
Note: Instant digital download only – no printed copy or CD-ROM media.

This downloadable PDF diagnostic manual provides symptom- and code-based diagnostic information for 2019+ Duramax 6.6 engines with L5D code and can be viewed on your smartphone, tablet or computer.

Dated March 2020. Mechanical service manual sold separately.


  • Systems Overview
  • DTC Code List
  • Fault Code Diagnostics (Description, Conditions, Actions, Testing, Verification and Repair Recommendations)
  • Engine Symptom Diagnostics
  • Engine Tests and Inspections
  • And Much More…

How does this work?

It’s simple – after purchasing this manual through our secure checkout, a download link will be sent to the email address you specify at checkout. You have up to 90 days to retrieve and save the file. Once saved, the manual is yours for good.

Have any questions or need more details? Contact Us

SKU: DURAMAX66-DM Categories: , Tags: ,

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