Engine, Cooling and Exhaust: Technical Service Bulletins

• Customer Interest
  • Engine - Belt Chirp or Squeal
  • Engine No Start, DTC 41 (Cam Sensor Circuit) Set
  • Engine - Oil Leak At Rear Main Bearing Cap Side Seal
  • Engine - Does Not Stay Running On Initial Cold Start
  • Engine - Chuggle At 35-45 MPH
  • Engine - Miss, Hesitation, or Roughness
  • Cooling Fan - Runs Battery Dead Diagnosis
  • Engine - Knocking Noise Just Above Idle
  • Engine, A/T - Shift/Driveability Concerns/MIL ON
• By Symptom
  • Abnormal wear/deterioration
    • Engine No Start, DTC 41 (Cam Sensor Circuit) Set
    • Engine - Knocking Noise Just Above Idle
  • Continuous fan operation
    • Cooling Fan - Runs Battery Dead Diagnosis
  • Customer Interest
    • Engine - Belt Chirp or Squeal
    • Engine No Start, DTC 41 (Cam Sensor Circuit) Set
    • Engine - Oil Leak At Rear Main Bearing Cap Side Seal
    • Engine - Does Not Stay Running On Initial Cold Start
    • Engine - Chuggle At 35-45 MPH
    • Engine - Miss, Hesitation, or Roughness
    • Cooling Fan - Runs Battery Dead Diagnosis
    • Engine - Knocking Noise Just Above Idle
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • Driveability
    • Engine - Does Not Stay Running On Initial Cold Start
    • Engine - Chuggle At 35-45 MPH
    • Engine - Miss, Hesitation, or Roughness
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • Erratic Operation
    • Engine - Miss, Hesitation, or Roughness
  • Erratic Shifting
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • False instrument warning light/gauges
    • Engine - Does Not Stay Running On Initial Cold Start
  • Leaks
    • Engine - Oil Leak At Rear Main Bearing Cap Side Seal
  • Low, Dead battery
    • Cooling Fan - Runs Battery Dead Diagnosis
  • Noise
    • Engine - Belt Chirp or Squeal
    • Engine - Knocking Noise Just Above Idle
  • Starting problems
    • Engine No Start, DTC 41 (Cam Sensor Circuit) Set
  • Won't turn off
    • Cooling Fan - Runs Battery Dead Diagnosis
• All Technical Service Bulletins
  • Vehicle - Engine And Sub Systems Flushing Info. (CANADA)
  • Vehicle - Engine And Sub-Systems Flushing Recommendations
  • Engines - ACDelco Remanufactured
    • Overview
    • Warranty Coverage
    • Warranty Claim Submission Procedures
  • Engine - Surface Conditioning Discs Precautions
  • Engine - AC Delco Remanufactured Engines
    • Overview
    • Warranty Coverage
    • New Warranty Registration
    • Warranty Claim Submission Requirements
    • Claim Submission Details
  • Engine - Belt Chirp or Squeal
  • Engine No Start, DTC 41 (Cam Sensor Circuit) Set
  • Cooling - Radiator Repair/Replacement Guidelines
  • Engine - Oil Leak At Rear Main Bearing Cap Side Seal
  • Engine - Does Not Stay Running On Initial Cold Start
  • Engine - Chuggle At 35-45 MPH
  • Cranshaft Main/Rod Bearing - Revised Clearances
  • Engine - Miss, Hesitation, or Roughness
  • Cooling Fan - Runs Battery Dead Diagnosis
  • Coolant - Information on Propylene Glycol Usage
  • Warranty - Recycled Engine Coolant Policy
  • Engine - Knocking Noise Just Above Idle
  • Cooling System - Coolant Recycling Information
  • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • Engine - Sealant Usage/Procedures
  • Engine/Fuel System - Oil/Fuel Additive Information
  • Cooling System, A/C - Aluminum Heater Cores/Radiators
  • Engine - Noise/Damage Oil Filter Application Importance
  • Engine - Drive Belt Misalignment Diagnostics
  • Engine - Use of 'Surface Conditioning Disks'
  • Engine - Intake Manifold Inspection/Replacement
  • Engine - GM Dexos 1(R) And 2(R) Oil Specifications
  • Engine - GM dexos 1(R) and dexos 2(R) Oil Specifications/Info.