Operation CHARM
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Dodge or Ram Truck
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1997
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RAM 2500 Truck 4WD V6-3.9L VIN X
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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
Spark Plug
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Application and ID
Description and Operation
Testing and Inspection
Broken, Cracked or Chipped Insulator
Brown to Gray/Tan Color - Normal Operating Condition
Dry, Fluffy Black Deposits - Cold or Carbon Fouling
Electrode Gap Bridging
Oil or Ash Encrusted
Overheating
Premature Electrode Wear - Preignition Damage
Scavenger Deposits
Wet Fouling or Gas Fouling
Service and Repair
Specifications
