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Jeep
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1998
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Cherokee 4WD L6-4.0L VIN S
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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 - Spark Knock/PCM Reprogramming
By Symptom
Customer Interest
Engine - Spark Knock/PCM Reprogramming
Driveability
Engine - Spark Knock/PCM Reprogramming
Poor performance
Engine - High Driveability Index Fuels
All Technical Service Bulletins
Engine Controls - Miss-Fire Test Revisions
Engine - High Driveability Index Fuels
Engine - Spark Knock/PCM Reprogramming
Fuel System/Engine Controls - Manual Revisions
Fuel Pressure Gauge Adapter - Usage