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March 1, 2001 Service bulletin

Some vehicle's hydraulic cooling fan systems (HCF) may exhibit a knocking noise

Lincoln technical service bulletin 13913 for 2000 Lincoln LS.

Bulletin number
13913
Component
Visibility: defroster/defogger/HVAC system
Summary
Some vehicle's hydraulic cooling fan systems (hcf) may exhibit a knocking noise. This noise could be due to air in the system, hcf lines or components improperly touching other components, or a hcf pump. Tt

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