Powertrain Management: Technical Service Bulletins

• Recalls
  • Generals
    • Campaign - Mass Air Flow Sensor Replacement
      • Overview
      • Dealer, Procedure, Parts & Claim Information
      • Letters Information
    • Campaign - Engine Stalling Problem
      • Overview
      • Vehicles Involved
      • Owner Notification, Reimbursement
      • Service Procedure
      • Parts Information, Training, Manuals
      • Warranty Claim Information
      • Owner Letter
      • Special Coverage Program
  • Safety
    • Recall 88V032000: Fuel Line Defect
• Customer Interest
  • Electrical - MIL ON/DTC's Set By Various Control Modules
  • Electrical - Intermittent MIL/DTC P2138/Reduced Power
  • Engine - Stalls on Drive/Reverse Engagement
  • ECM/PCM - Damaged or Mis-Diagnosed
  • Engine - Sags/Hesitation/Rough Idle
  • Engine - Poor Cold Driveability
  • Engine - Miss, Hesitation, or Roughness
  • Engines (Port Fuel Injected) - Recommended Fuels
  • Engine, A/T - Shift/Driveability Concerns/MIL ON
• By Symptom
  • Abnormal wear/deterioration
    • Electrical - MIL ON/DTC's Set By Various Control Modules
    • Electrical - Intermittent MIL/DTC P2138/Reduced Power
  • Customer Interest
    • Electrical - MIL ON/DTC's Set By Various Control Modules
    • Electrical - Intermittent MIL/DTC P2138/Reduced Power
    • Engine - Stalls on Drive/Reverse Engagement
    • ECM/PCM - Damaged or Mis-Diagnosed
    • Engine - Sags/Hesitation/Rough Idle
    • Engine - Poor Cold Driveability
    • Engine - Miss, Hesitation, or Roughness
    • Engines (Port Fuel Injected) - Recommended Fuels
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • Driveability
    • Fuel Pump - Cold Start Stall, Hesitation, Loss of Power
    • Engine - Stalls on Drive/Reverse Engagement
    • Engine - Sags/Hesitation/Rough Idle
    • Engine - Poor Cold Driveability
    • Engine - Miss, Hesitation, or Roughness
    • Ignition System - C31 Diagnostic Update
      • Overview
      • Chart A-3 (Page 1 of 3) Engine Cranks But Won't Run 1986-1987 3.0L (VIN L)
      • Chart A-3 (Page 1 of 3) Engine Cranks But Won't Run "Type I C(3)I" 1986-1987 3.8L (VIN 3 & 8)
      • Chart A-3 (Page 1 of 3) Engine Cranks But Won't Run "Type II C(3)I" 1986-1987 3.8L (VIN 3 & B)
      • Chart C-4F-1 C(3)I Misfire At Idle 1986-1987 3.0L (VIN L)
      • Chart C-4F-2 C(3)I Misfire Under Load 1986-1987 3.0L (VIN L)
      • Chart C-4F-1 C(3)I Misfire At Idle 1986-1987 3.8L (VIN 3 & B)
      • Chart C-4F-2 C(3)I Misfire Under Load 1986-1987 3.8L (VIN 3 & B)
    • Campaign - Engine Stalling Problem
      • Overview
      • Vehicles Involved
      • Owner Notification, Reimbursement
      • Service Procedure
      • Parts Information, Training, Manuals
      • Warranty Claim Information
      • Owner Letter
      • Special Coverage Program
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
    • Fuel System - TOP TIER Detergent Gasoline
  • Erratic Operation
    • Fuel Pump - Cold Start Stall, Hesitation, Loss of Power
    • Engine - Miss, Hesitation, or Roughness
  • Erratic Shifting
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • False instrument warning light/gauges
    • Fuel Pump - Cold Start Stall, Hesitation, Loss of Power
  • High emissions
    • I/M 240 Repairs - Obtaining Technical Assistance
  • Noise
    • Fuel Pump - Cold Start Stall, Hesitation, Loss of Power
  • Poor performance
    • Fuel Pump - Cold Start Stall, Hesitation, Loss of Power
    • Fuel System - TOP TIER Detergent Gasoline
  • Recalls
    • Campaign - Mass Air Flow Sensor Replacement
      • Overview
      • Dealer, Procedure, Parts & Claim Information
      • Letters Information
    • Recall 88V032000: Fuel Line Defect
    • Campaign - Engine Stalling Problem
      • Overview
      • Vehicles Involved
      • Owner Notification, Reimbursement
      • Service Procedure
      • Parts Information, Training, Manuals
      • Warranty Claim Information
      • Owner Letter
      • Special Coverage Program
  • Starting problems
    • Ignition System - C31 Diagnostic Update
      • Overview
      • Chart A-3 (Page 1 of 3) Engine Cranks But Won't Run 1986-1987 3.0L (VIN L)
      • Chart A-3 (Page 1 of 3) Engine Cranks But Won't Run "Type I C(3)I" 1986-1987 3.8L (VIN 3 & 8)
      • Chart A-3 (Page 1 of 3) Engine Cranks But Won't Run "Type II C(3)I" 1986-1987 3.8L (VIN 3 & B)
      • Chart C-4F-1 C(3)I Misfire At Idle 1986-1987 3.0L (VIN L)
      • Chart C-4F-2 C(3)I Misfire Under Load 1986-1987 3.0L (VIN L)
      • Chart C-4F-1 C(3)I Misfire At Idle 1986-1987 3.8L (VIN 3 & B)
      • Chart C-4F-2 C(3)I Misfire Under Load 1986-1987 3.8L (VIN 3 & B)
    • Fuel System - TOP TIER Detergent Gasoline
  • Sticking/Binding
    • Engine - Stalls on Drive/Reverse Engagement
• All Technical Service Bulletins
  • Vehicle - Engine And Sub Systems Flushing Info. (CANADA)
  • Vehicle - Engine And Sub-Systems Flushing Recommendations
  • Engine - THIS BULLETIN HAS BEEN CANCELED
  • Fuel System - Fuel Injector Maintenance Cleaning
  • Fuel System - GM Fuel System Treatment PLUS(R) Info.
  • Electrical - MIL ON/DTC's Set By Various Control Modules
  • Electrical - Intermittent MIL/DTC P2138/Reduced Power
  • Engine Stall Diagnosis - Labor Ops/Times
  • I/M 240 Repairs - Obtaining Technical Assistance
  • Fuel Pump - Cold Start Stall, Hesitation, Loss of Power
  • Engine - Stalls on Drive/Reverse Engagement
  • MAP - Revised Output Chart for Codes 33, 34, 63, and 64
  • Tools - Introduction Of The Fuel Injector Tester
  • ECM/PCM - Damaged or Mis-Diagnosed
  • ECM - Packard 32 Way Connector ID
  • Oxygen Sensors - Silica Contamination
  • Campaign - Mass Air Flow Sensor Replacement
    • Overview
    • Dealer, Procedure, Parts & Claim Information
    • Letters Information
  • Engine Controls - MAF Sensor Warranty Return Program
  • Engine - Sags/Hesitation/Rough Idle
  • Engine - Poor Cold Driveability
  • Recall 88V032000: Fuel Line Defect
  • Engine - Miss, Hesitation, or Roughness
  • Ignition System - C31 Diagnostic Update
    • Overview
    • Chart A-3 (Page 1 of 3) Engine Cranks But Won't Run 1986-1987 3.0L (VIN L)
    • Chart A-3 (Page 1 of 3) Engine Cranks But Won't Run "Type I C(3)I" 1986-1987 3.8L (VIN 3 & 8)
    • Chart A-3 (Page 1 of 3) Engine Cranks But Won't Run "Type II C(3)I" 1986-1987 3.8L (VIN 3 & B)
    • Chart C-4F-1 C(3)I Misfire At Idle 1986-1987 3.0L (VIN L)
    • Chart C-4F-2 C(3)I Misfire Under Load 1986-1987 3.0L (VIN L)
    • Chart C-4F-1 C(3)I Misfire At Idle 1986-1987 3.8L (VIN 3 & B)
    • Chart C-4F-2 C(3)I Misfire Under Load 1986-1987 3.8L (VIN 3 & B)
  • Ignition System - Diagnostic Supplement
  • Campaign - Engine Stalling Problem
    • Overview
    • Vehicles Involved
    • Owner Notification, Reimbursement
    • Service Procedure
    • Parts Information, Training, Manuals
    • Warranty Claim Information
    • Owner Letter
    • Special Coverage Program
  • Enhanced IM240 Program - Implementation Plan
  • Emission - Enhanced Inspection Maintenance Programs
  • I/M 240 Program - Equipment Purchase
  • I/M Emissions Diagnostic Manual -Program
  • Enhanced Emission I/M - Program Update
  • Enhanced Emission Inspection Maintenance - Equipment
  • EVAP System - Service of Connectors
  • ECM/PCM - Damage Prevention
  • Oxygen Sensor Test - Revised Tech 1 Mass Storage CD
  • PROM/MEMCAL - Identification Marks
  • Fuel - How Fuel Economy Is Determined
  • Engines (Port Fuel Injected) - Recommended Fuels
  • Fuel - Reformulated/Oxygenated Gasolines
  • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • Fuel System - E85 Fuel Usage Precaution
  • Engine/Fuel System - Oil/Fuel Additive Information
  • Fuel System - TOP TIER Detergent Gasoline (Canada)
  • Fuel System - TOP TIER Detergent Gasoline