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GMC Truck
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1991
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S15/T15 4WD P/U L4-151 2.5L
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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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Recalls
Campaign - MEM-CAL Update
Overview
Service Procedure
Parts and Warranty Information
Identification Label and Administrative Procedure
Owner Letter
Sample Letter to Non-Involved Owners
Customer Interest
Engine - Cold or Hot Restart Roughness
Engine Control - Idle Surge/Hesitation
All Technical Service Bulletins
Engine - THIS BULLETIN HAS BEEN CANCELED
PROM - Powertrain Control Module Reprogramming
Engine - Cold or Hot Restart Roughness
ECM/PCM - Installation Procedures/Mem-Cal Concerns
Campaign - MEM-CAL Update
Overview
Service Procedure
Parts and Warranty Information
Identification Label and Administrative Procedure
Owner Letter
Sample Letter to Non-Involved Owners
Engine Control - Idle Surge/Hesitation