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GMC Truck
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2003
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Envoy 4WD L6-4.2L 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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Spark Plug
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Specifications
Spark Plug: Specifications
Spark Plug
Torque
18.0 Nm (13.0 lb. ft.)
Spark Plug
Gap
1.08 mm (0.0425 in.)