Engine: Technical Service Bulletins

• Customer Interest
  • Engine - Clunk/Grounding Noise On Acceleration/Shifting
  • Engine - Belt Chirp or Squeal
  • Engine Control - Intermittent Code 44 or 48
  • Engine - Miss, Hesitation, or Roughness
  • Instruments - Oil Pressure Gage Erratic or Displays High
  • Engine - False High Oil Pressure Gage Readings
  • Low Oil Level Sensor - False Warning Message
  • Engine - Low Oil Message Normal Operation
  • Engine, A/T - Shift/Driveability Concerns/MIL ON
• By Symptom
  • Customer Interest
    • Engine - Clunk/Grounding Noise On Acceleration/Shifting
    • Engine - Belt Chirp or Squeal
    • Engine Control - Intermittent Code 44 or 48
    • Engine - Miss, Hesitation, or Roughness
    • Instruments - Oil Pressure Gage Erratic or Displays High
    • Engine - False High Oil Pressure Gage Readings
    • Low Oil Level Sensor - False Warning Message
    • Engine - Low Oil Message Normal Operation
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • Driveability
    • Engine - Miss, Hesitation, or Roughness
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • Erratic Operation
    • Engine - Miss, Hesitation, or Roughness
    • Instruments - Oil Pressure Gage Erratic or Displays High
  • Erratic Shifting
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • False instrument warning light/gauges
    • Instruments - Electrical Problem/Oil Gage Reads High
    • Engine Control - Intermittent Code 44 or 48
    • Engine - False High Oil Pressure Gage Readings
    • Low Oil Level Sensor - False Warning Message
    • Engine - Low Oil Message Normal Operation
  • Noise
    • Engine - Clunk/Grounding Noise On Acceleration/Shifting
    • Engine - Belt Chirp or Squeal
• All Technical Service Bulletins
  • Vehicle - Engine And Sub Systems Flushing Info. (CANADA)
  • Vehicle - Engine And Sub-Systems Flushing Recommendations
  • Engine - Intake Manifold Inspection/Replacement
  • Engine - Use of 'Surface Conditioning Disks'
  • Engine - Drive Belt Misalignment Diagnostics
  • Engine - Noise/Damage Oil Filter Application Importance
  • Engine - Sealant Usage/Procedures
  • Engine - AC Delco Remanufactured Engines
    • Overview
    • Warranty Coverage
    • New Warranty Registration
    • Warranty Claim Submission Requirements
    • Claim Submission Details
  • Engine - Surface Conditioning Discs Precautions
  • Engines - ACDelco Remanufactured
    • Overview
    • Warranty Coverage
    • Warranty Claim Submission Procedures
  • Engine - Clunk/Grounding Noise On Acceleration/Shifting
  • Instruments - Electrical Problem/Oil Gage Reads High
  • Engine - Belt Chirp or Squeal
  • Piston Specifications - Revised
    • Overview
    • 1988 - 1992 (LN3 and L27) Piston Specifications
    • 1993 - 1994 (L27) Piston Specifications
    • 1992 - 1993 (L67) Piston Specifications
    • 1994 (L67) Piston Specifications
  • Balance Shaft - Special Tools and Procedure Revision
  • Engine Control - Intermittent Code 44 or 48
  • Engine - Miss, Hesitation, or Roughness
  • Instruments - Oil Pressure Gage Erratic or Displays High
  • Engine - False High Oil Pressure Gage Readings
  • Engine Controls - Diagnosing Various E/B Code
  • Low Oil Level Sensor - False Warning Message
  • Engine - Low Oil Message Normal Operation
  • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • Engine/Fuel System - Oil/Fuel Additive Information
  • Engine - GM Dexos 1(R) And 2(R) Oil Specifications
  • Engine - GM dexos 1(R) and dexos 2(R) Oil Specifications/Info.