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GMC Truck
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1990
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Suburban 1/2 Ton 2WD V8-454 7.4L
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Repair and Diagnosis
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Powertrain Management
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PROM - Programmable Read Only Memory
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Technical Service Bulletins
PROM - Programmable Read Only Memory: Technical Service Bulletins
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Customer Interest
Engine - Cold Knock, Replace Oil Filter/Bearings/PROM
Engine - Detonation/Sulfur Odor From Exhaust
Engine - Rough Idle Cold or Hesitation
All Technical Service Bulletins
Engine - THIS BULLETIN HAS BEEN CANCELED
PROM - Powertrain Control Module Reprogramming
Engine - Cold Knock, Replace Oil Filter/Bearings/PROM
Engine - Detonation/Sulfur Odor From Exhaust
Engine - Rough Idle Cold or Hesitation
ECM/PCM - Installation Procedures/Mem-Cal Concerns