FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Home >> Mercury >> 1982 >> Zephyr V8-255 4.2L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Reading and Clearing Diagnostic Trouble Codes >> Quick Tests >> 6.0 - 6.3 Spark Knock, Poor Performance/Mileage >> 6.3

6.0 - 6.3 Spark Knock, Poor Performance/Mileage: 6.3





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