Engine: Technical Service Bulletins

• Customer Interest
  • Engine - Hum/Whine Noise From the Front
  • Engine - Tick or Rattle Noise After Cold Start Up
  • PROM - Engine May Exhibit Cold Start Stall
  • Engine Oil Filter - Oil Drips Off Axle or Frame
  • Engine - Miss, Hesitation, or Roughness
  • Oil Pressure Gauge - Erratic/Displays High
  • Oil Pressure Switch or Sender/Switch - Inoperative
  • Engine, A/T - Shift/Driveability Concerns/MIL ON
• By Symptom
  • Customer Interest
    • Engine - Hum/Whine Noise From the Front
    • Engine - Tick or Rattle Noise After Cold Start Up
    • PROM - Engine May Exhibit Cold Start Stall
    • Engine Oil Filter - Oil Drips Off Axle or Frame
    • Engine - Miss, Hesitation, or Roughness
    • Oil Pressure Gauge - Erratic/Displays High
    • Oil Pressure Switch or Sender/Switch - Inoperative
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • Driveability
    • PROM - Engine May Exhibit Cold Start Stall
    • Engine - Miss, Hesitation, or Roughness
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • Erratic Operation
    • Engine - Miss, Hesitation, or Roughness
    • Oil Pressure Gauge - Erratic/Displays High
  • Erratic Shifting
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • False instrument warning light/gauges
    • Oil Pressure Gauge - Erratic/Displays High
  • Leaks
    • Engine Oil Filter - Oil Drips Off Axle or Frame
  • Noise
    • Engine - Hum/Whine Noise From the Front
    • Engine - Tick or Rattle Noise After Cold Start Up
• 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 - Hum/Whine Noise From the Front
  • Engine - Tick or Rattle Noise After Cold Start Up
  • Spark Plug - Revised Design
  • 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
  • Intake Manifold - Torque Specifications Revised
  • PROM - Engine May Exhibit Cold Start Stall
  • Engine Oil Filter - Oil Drips Off Axle or Frame
  • Rear Main Bearing Cap - Removal/Installation Procedure
  • Engine - Miss, Hesitation, or Roughness
  • Oil Pressure Gauge - Erratic/Displays High
  • Oil Pressure Switch or Sender/Switch - Inoperative
  • Engine - Oil Pressure Specification Update
  • Tools - Revised Number For Balancer Puller
  • Engine - New Valve Spring and Cap
  • Engine - New Prelube Tool
  • 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.