Powertrain Management: Technical Service Bulletins

• Recalls
  • Recall - Inoperative Canister Purge TVS
    • Overview
    • Vehicles Involved, Owner Notification, Dealer Campaign & Parts Information
    • Service Procedure, Campaign Label, Claim & Recording Information
    • Owner Letter Information
• Customer Interest
  • Electrical - MIL ON/DTC's Set By Various Control Modules
  • Electrical - Intermittent MIL/DTC P2138/Reduced Power
  • Engine - Summary of Warm Ambient Driveability Problems
  • Engine - Surge/Hesitation/Stumbles
  • Engine - Hesitation or Sag On Hard Acceleration
  • Engine - Hesitation or Sag Under Hard Acceleration
  • Emissions - Reduced Performance Or Sag
  • Engine - Surge, Hesitation, Stumble on Hot Soak Restart
  • A/T - 3rd-2nd, 2nd-1st Gear Coastdown Clunk
  • ECM - Failures
  • Oxygen Sensor - Code 13 Set/MIL ON
  • Engine - Surging After a Hot Soak
    • Overview
    • Primary Metering Jet Replacement:
    • Claim Information
  • Engine - Poor Driveability After Starting a Hot Soak
  • Engine - Hesitation on Light Acceleration
  • Engine - Rough Idle/Rich Acceleration/Lean Idle
  • Engine - Miss, Hesitation, or Roughness
  • Engine - Power Loss, Hesitation, Roughness/Backfire
  • A/T - Overheating When Driven in Fourth Gear
  • A.I.R. Pump Pulley - Rattling Noise
  • Engine - Hard Start/Poor Warm Up Performance
  • Engine - Poor Idle Caused by Vacuum Leaks
  • 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
    • A/T TCC Solenoid - Pinched Wires
    • Fuel Injector - Preventing Electrical Damage During Test
    • Engine Controls - Static Electrical Damage Precaution
  • Customer Interest
    • Electrical - MIL ON/DTC's Set By Various Control Modules
    • Electrical - Intermittent MIL/DTC P2138/Reduced Power
    • Engine - Summary of Warm Ambient Driveability Problems
    • Engine - Surge/Hesitation/Stumbles
    • Engine - Hesitation or Sag On Hard Acceleration
    • Engine - Hesitation or Sag Under Hard Acceleration
    • Emissions - Reduced Performance Or Sag
    • Engine - Surge, Hesitation, Stumble on Hot Soak Restart
    • A/T - 3rd-2nd, 2nd-1st Gear Coastdown Clunk
    • ECM - Failures
    • Oxygen Sensor - Code 13 Set/MIL ON
    • Engine - Surging After a Hot Soak
      • Overview
      • Primary Metering Jet Replacement:
      • Claim Information
    • Engine - Poor Driveability After Starting a Hot Soak
    • Engine - Hesitation on Light Acceleration
    • Engine - Rough Idle/Rich Acceleration/Lean Idle
    • Engine - Miss, Hesitation, or Roughness
    • Engine - Power Loss, Hesitation, Roughness/Backfire
    • A/T - Overheating When Driven in Fourth Gear
    • A.I.R. Pump Pulley - Rattling Noise
    • Engine - Hard Start/Poor Warm Up Performance
    • Engine - Poor Idle Caused by Vacuum Leaks
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • Driveability
    • Engine - Summary of Warm Ambient Driveability Problems
    • Engine - Surge/Hesitation/Stumbles
    • Engine - Hesitation or Sag On Hard Acceleration
    • Engine - Hesitation or Sag Under Hard Acceleration
    • Engine - Surge, Hesitation, Stumble on Hot Soak Restart
    • Engine - Surging After a Hot Soak
      • Overview
      • Primary Metering Jet Replacement:
      • Claim Information
    • Engine - Poor Driveability After Starting a Hot Soak
    • Engine - Surge After a Hot Soak
    • Engine - Hesitation on Light Acceleration
    • Engine - Rough Idle/Rich Acceleration/Lean Idle
    • Engine - Miss, Hesitation, or Roughness
    • Engine - Power Loss, Hesitation, Roughness/Backfire
    • Engine - Hard Start/Poor Warm Up Performance
    • Engine - Poor Idle Caused by Vacuum Leaks
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
    • Fuel System - TOP TIER Detergent Gasoline
  • Erratic Operation
    • Engine - Miss, Hesitation, or Roughness
    • Engine - Power Loss, Hesitation, Roughness/Backfire
  • Erratic Shifting
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • False instrument warning light/gauges
    • Oxygen Sensor - Code 13 Set/MIL ON
  • High emissions
    • I/M 240 Repairs - Obtaining Technical Assistance
    • Emission Systems - State Testing Information
  • Inoperative
    • Recall - Inoperative Canister Purge TVS
      • Overview
      • Vehicles Involved, Owner Notification, Dealer Campaign & Parts Information
      • Service Procedure, Campaign Label, Claim & Recording Information
      • Owner Letter Information
    • ECM - Failures
    • Engine - Hesitation on Light Acceleration
    • Updated Canister Control Valve
  • Leaks
    • Engine - Poor Idle Caused by Vacuum Leaks
  • Noise
    • A/T - 3rd-2nd, 2nd-1st Gear Coastdown Clunk
    • A.I.R. Pump Pulley - Rattling Noise
  • Overheating
    • Engine - Surge/Hesitation/Stumbles
    • A/T - Overheating When Driven in Fourth Gear
  • Poor performance
    • Emissions - Reduced Performance Or Sag
    • Fuel System - TOP TIER Detergent Gasoline
  • Recalls
    • Recall - Inoperative Canister Purge TVS
      • Overview
      • Vehicles Involved, Owner Notification, Dealer Campaign & Parts Information
      • Service Procedure, Campaign Label, Claim & Recording Information
      • Owner Letter Information
  • Starting problems
    • Engine - Hard Start/Poor Warm Up Performance
    • Fuel System - TOP TIER Detergent Gasoline
• 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 - Summary of Warm Ambient Driveability Problems
  • Recall - Inoperative Canister Purge TVS
    • Overview
    • Vehicles Involved, Owner Notification, Dealer Campaign & Parts Information
    • Service Procedure, Campaign Label, Claim & Recording Information
    • Owner Letter Information
  • I/M 240 Repairs - Obtaining Technical Assistance
  • Cooling Fan/Idle Speed/Spark Control - Electrical Tests
  • Engine - Effects of Top Engine Cleaner on the Converter
  • Engine - Surge/Hesitation/Stumbles
  • Engine Controls - TPS Specifications
  • Fuel - Normal Pump Run-On
  • Engine - Hesitation or Sag On Hard Acceleration
  • Electric Fuel Pump - Wiring Diagrams
  • Engine - Hesitation or Sag Under Hard Acceleration
  • Emissions - Reduced Performance Or Sag
  • Ignition - Spark Plug Application & Gap
  • Engine - Surge, Hesitation, Stumble on Hot Soak Restart
  • A/T - 3rd-2nd, 2nd-1st Gear Coastdown Clunk
  • A/T TCC Solenoid - Pinched Wires
  • ECM - Failures
  • Fuel Injector - Preventing Electrical Damage During Test
  • TBI Fuel Injectors - Remanufactured Parts Available
  • Tools - Introduction Of The Fuel Injector Tester
  • ECM - Revised Replacement Procedure
  • Engine Controls - ECM May Contain Wrong PROM
  • ECM - Packard 32 Way Connector Identification
  • ECM - Packard 32-Way Connector Identification
  • ECM/PCM - Damaged and/or Mis-Diagnosed
  • ECM - Knock Retard Data Stream Changes
  • Oxygen Sensor - Code 13 Set/MIL ON
  • Oxygen Sensors - Silica Contamination
  • HEI Module - Testing Updated
  • Engine - Surging After a Hot Soak
    • Overview
    • Primary Metering Jet Replacement:
    • Claim Information
  • Engine - Poor Driveability After Starting a Hot Soak
  • CCC - Revised Varajet Carburetor Pre-Set Procedure
  • Engine - Surge After a Hot Soak
  • Accelerator Pumps, VITON - Two Types Available
  • Carburetor - Adjustment Specification Revisions
  • Fuel Line - O-Ring Composition
  • Tools - Fuel Line Wrench Number Incorrectly Listed
  • Threadlocking Compound - Packaging Change
  • Engine - Hesitation on Light Acceleration
  • Updated Canister Control Valve
  • Canister Control Valve - Diagnosis Procedure
  • Engine - Rough Idle/Rich Acceleration/Lean Idle
  • EVAP - Canister Control Valve Mounting Procedure
  • Engine - Effects of Top Engine Cleaner On CAT Converter
  • Catalyst - Change Procedures For Dual Bed CAT
  • Engine - Miss, Hesitation, or Roughness
  • Engine - Power Loss, Hesitation, Roughness/Backfire
  • HEI System - Description and Diagnosis Chart
  • A/T - Overheating When Driven in Fourth Gear
  • Engine - Provisions for Altitude Adjustments
  • Emission Systems - State Testing Information
  • 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
  • Computer & Controls - Integrator/Block Learn Operation
  • Engine Controls - Updated Rough/Unstable Idle Chart
  • Revised CCC and EFI Diagnostic Charts
    • Overview
    • CCC
      • *1983 Chart - "Idle Speed Solenoid - Throttle Kicker"
      • 1983 Chart - "Code 12, (Except Hall Switch)"
      • 1983 Chart - "Code 12 (Hall Switch)"
      • 1983 Chart 4
      • 1983 Chart - "Code 24"
      • 1983 Chart - "Pulse Width Modulated (PWM) EGR Check"
      • 1983 Chart - "EGR Valve Check"
      • 1983 Chart - "EFE (Vacuum Servo) Check"
      • 1982/1983 Chart - "Engine Cranks But Will Not Run (Remote Coil)"
      • 1982/1983 Chart - "Engine Cranks But Will Not Run (Integral Coil)"
      • 1982 Chart - "Code 42"
      • 1982 Chart - "EGR Valve Check - 3.0L V6"
      • 1982 Chart - "TCC Electrical Diagnosis"
      • 1982 Chart 2
      • 1981 Chart - "Code 34"
    • EFI
      • 1983 Chart - "Field Service Mode Check"
      • 1983 Chart 3
      • *1983 Chart 8
      • *1983 Chart 9 (Two Pages)
      • 1983 Chart 11
      • 1983 Chart - "Code 24"
      • 1983 Chart - "Code 42"
      • 1982/1983 Chart - "Code 44"
  • Engine Controls - Static Electrical Damage Precaution
  • Monitor II - Update Program
  • Engine Controls - Diagnostic Chart Revisions
  • EFI Diagnostic Charts - Updated
    • Overview
    • 1982-1983 Chart - "Diagnostic Circuit Check"
    • 1982-1983 Chart - "Field Service Mode Check"
    • 1982-1983 Chart 4
    • 1983 Chart 4A
    • 1983 Chart 8
    • 1983 Chart 11
    • 1982 Chart 11
    • 1983.5 Chart 11B (One-Board ECM)
    • 1982-1983 Chart - "Code 24"
  • Engine Controls - MAP Chart, DTC's 33, 34 ,63 ,64
    • Overview
    • Chart C-1D
    • Code 33
    • Code 34
    • Code 63
    • Code 64
  • Oxygen Sensor Test - Revised Tech 1 Mass Storage CD
  • Accelerator Pump, VITON - Additional Part Numbers
  • A.I.R. Pump Pulley - Rattling Noise
  • Engine - Hard Start/Poor Warm Up Performance
  • Coolant Temperature Sensor - Sensor Kit
  • PROM/MEMCAL - Identification Marks
  • Fuel - How Fuel Economy Is Determined
  • Engine - Poor Idle Caused by Vacuum Leaks
  • Oil Pressure Switch - Information
  • Fuel Tank Vent Valves - Undercoating
  • Fuel - Reformulated/Oxygenated Gasolines
  • Fuel - Use of MTBE At 15% or Less In 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