Operation CHARM
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Mercury
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1990
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Grand Marquis V8-351 5.8L
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Repair and Diagnosis
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Powertrain Management
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Tune-up and Engine Performance Checks
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Technical Service Bulletins
Tune-up and Engine Performance Checks: Technical Service Bulletins
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Customer Interest
Engine - Rough Idle/Hesitation/Backfire/Stalling
Engine - High Idle/MIL ON
Engine - Spark Knock On Acceleration
By Symptom
Customer Interest
Engine - Rough Idle/Hesitation/Backfire/Stalling
Engine - High Idle/MIL ON
Engine - Spark Knock On Acceleration
Driveability
Engine - Rough Idle/Hesitation/Backfire/Stalling
Engine - High Idle/MIL ON
Noise
Engine - Spark Knock On Acceleration
Poor performance
Engine - Rough Idle/Hesitation/Backfire/Stalling
All Technical Service Bulletins
Engine - Rough Idle/Hesitation/Backfire/Stalling
Engine - High Idle/MIL ON
Ignition Timing Procedure - Manual Update
Engine - Spark Knock On Acceleration