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TSB Document:

Affected Component: ENGINE AND ENGINE COOLING

Summary
This informational bulletin provides Information on Identifying Duramax Diesel Overpower Engine Breakdown/Non-Function Due to Aftermarket Power-Up Devices vs Non Overpower Engine Non-Function of Pistons, Cylinders, Valvetrain Components, DTC P003A or P111D Set

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Date Published
OCT 15, 2012
NHTSA TSB #
10118639
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