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How To: Find and Diagnose ESOF Hub Vacuum Leaks

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Old 11-19-2011, 06:04 AM
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How To: Find and Diagnose ESOF Hub Vacuum Leaks
If the Autolock hubs on your ESOF equipped Ford SuperDuty do not lock or engage when you switch into 4x4, chances are you have a vacuum leak. This video will show you, step by step, how to find, diagnose, and to some extent repair the most common causes of this break down in the ESOF system.

How To: Find and Diagnose ESOF Hub Vacuum Leaks - YouTube
 
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