Operation CHARM
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GMC Truck
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1986
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K 3500 Truck 4WD V8-454 7.4L
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Repair and Diagnosis
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Maintenance
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Tune-up and Engine Performance Checks
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Technical Service Bulletins
Tune-up and Engine Performance Checks: Technical Service Bulletins
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Customer Interest
Engine - Miss, Hesitation, or Roughness
Fuel - Gasoline Brands That Clean Port Fuel Injectors
Oil Filter - Changing as a Result of Fouled Plugs
Engine, A/T - Shift/Driveability Concerns/MIL ON
By Symptom
Customer Interest
Engine - Miss, Hesitation, or Roughness
Fuel - Gasoline Brands That Clean Port Fuel Injectors
Oil Filter - Changing as a Result of Fouled Plugs
Engine, A/T - Shift/Driveability Concerns/MIL ON
Driveability
Engine - Miss, Hesitation, or Roughness
Oil Filter - Changing as a Result of Fouled Plugs
Engine, A/T - Shift/Driveability Concerns/MIL ON
Erratic Operation
Engine - Miss, Hesitation, or Roughness
Erratic Shifting
Engine, A/T - Shift/Driveability Concerns/MIL ON
All Technical Service Bulletins
Engine - Miss, Hesitation, or Roughness
Spark Plug - Usage
Fuel - Gasoline Brands That Clean Port Fuel Injectors
Oil Filter - Changing as a Result of Fouled Plugs
Engine, A/T - Shift/Driveability Concerns/MIL ON