Home » Duramax LLY » Duramax LLY – ENGINE DIAGNOSIS – General Information

Duramax LLY – ENGINE DIAGNOSIS – General Information

The diagnosis charts describe common faults that may occur.
Potential causes are listed in order of probability. Although the charts list frequent causes for specific engine related problems, they do not cover every possible cause. The charts are intended to serve as guides only.

The diagnosis information in this section is aimed at solving engine mechanical problems with normal shop diagnostic equipment.

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