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1983
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944 L4-2479cc 2.5L
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Repair and Diagnosis
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Powertrain Management
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Ignition System
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Spark Plug
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Technical Service Bulletins
Spark Plug: Technical Service Bulletins
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Spark Plugs - Revised Plugs and Tightening Torque
Spark Plugs - Install With Threads Clean and Dry
Spark Plug - Application Chart