Operation CHARM
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Buick
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1990
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LeSabre Estate Wagon V8-307 5.0L VIN Y 4-bbl
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Repair and Diagnosis
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Powertrain Management
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Ignition System
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Knock Sensor
Knock Sensor
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Description and Operation
Testing and Inspection
Chart C-4K EST Performance Check
Chart C-5 Electronic Spark Control (ESC) Check
Specifications
