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Mercury
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1997
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Grand Marquis V8-4.6L VIN W
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Repair and Diagnosis
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Testing and Inspection
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Initial Inspection and Diagnostic Overview
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Vibration Conditions
Vibration Conditions
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Engine or Accessory Vibration, all speeds.
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High-speed shake,
80 km/h (50 mph
and up):
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Tip-in Moan.
B: Tip-In Moan
If the symptom still exists.
D: Engine Accessory Vibration
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Brake Shudder.