Operation CHARM
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GMC Truck
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1989
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R 3500 P/U 2WD V8-454 7.4L
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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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Technical Service Bulletins
Tune-up and Engine Performance Checks: Technical Service Bulletins
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Customer Interest
Engine - Miss, Hesitation, or Roughness
PROM - Surge, Detonation or Code 32, EGR
Fuel - Diagnosis for Surge Hot/Cold, Detonation, Code 32
Engine, A/T - Shift/Driveability Concerns/MIL ON
By Symptom
Customer Interest
Engine - Miss, Hesitation, or Roughness
PROM - Surge, Detonation or Code 32, EGR
Fuel - Diagnosis for Surge Hot/Cold, Detonation, Code 32
Engine, A/T - Shift/Driveability Concerns/MIL ON
Driveability
Engine - Miss, Hesitation, or Roughness
PROM - Surge, Detonation or Code 32, EGR
Fuel - Diagnosis for Surge Hot/Cold, Detonation, Code 32
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
False instrument warning light/gauges
PROM - Surge, Detonation or Code 32, EGR
Fuel - Diagnosis for Surge Hot/Cold, Detonation, Code 32
Noise
PROM - Surge, Detonation or Code 32, EGR
Fuel - Diagnosis for Surge Hot/Cold, Detonation, Code 32
All Technical Service Bulletins
Engine - Miss, Hesitation, or Roughness
PROM - Surge, Detonation or Code 32, EGR
Fuel - Diagnosis for Surge Hot/Cold, Detonation, Code 32
Engine, A/T - Shift/Driveability Concerns/MIL ON