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February 9, 2004 Service bulletin

Engine knock during initial cold start, the knock will cease after the engine is fully warmed up

Mercury technical service bulletin 0421 for 2003-2004 Mercury Grand Marquis, 2003-2004 Lincoln Town Car and 2003-2004 Ford Crown Victoria.

Bulletin number
0421
Component
Engine and engine cooling: engine
Summary
Engine knock during initial cold start, the knock will cease after the engine is fully warmed up. Tt

Owners of these vehicles have filed 73 complaints in the engine category.

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