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June 1, 2003 Service bulletin

Clear gel-like substance in the hydraulic brake master cylinder reservoir

Ford technical service bulletin 16891 for 1999-2003 Ford F Super Duty, 1999-2003 Ford F Series and 1999 Ford F800.

Bulletin number
16891
Component
Service brakes, hydraulic
Summary
Clear gel-like substance in the hydraulic brake master cylinder reservoir. This substance is a silicone base lubricant used during assembly of the master cylinder. Tt

Owners of these vehicles have filed 55 complaints in the brakes category.

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