Operation CHARM
: Car repair manuals for everyone.
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Mercury
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1989
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Grand Marquis V8-302 5.0L VIN F FI
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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Testing and Inspection
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Pinpoint Tests
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DG - Knock Sensor
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DG1 - DG2
DG1 - DG2
Pinpoint Test DG1 Thru DG2 - Knock Sensor:
