Fuel Delivery and Air Induction: Technical Service Bulletins

• Customer Interest
  • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • Emissions - Reduced Performance Or Sag
  • Engine - Reduced Performance, Poor Idle or Surge
  • A/T - 3rd-2nd, 2nd-1st Gear Coastdown Clunk
  • Engine - Hard Start/Poor Warm Up Performance
• By Symptom
  • Abnormal wear/deterioration
    • Fuel Injector - Preventing Electrical Damage During Test
  • Customer Interest
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
    • Emissions - Reduced Performance Or Sag
    • Engine - Reduced Performance, Poor Idle or Surge
    • A/T - 3rd-2nd, 2nd-1st Gear Coastdown Clunk
    • Engine - Hard Start/Poor Warm Up Performance
  • Driveability
    • Fuel System - TOP TIER Detergent Gasoline
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
    • Fuel - Idle Speed Control Explanation
    • Engine - Reduced Performance, Poor Idle or Surge
    • Engine - Hard Start/Poor Warm Up Performance
  • Erratic Shifting
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • Noise
    • A/T - 3rd-2nd, 2nd-1st Gear Coastdown Clunk
  • Out of specification
    • Engine - Reduced Performance, Poor Idle or Surge
  • Poor performance
    • Fuel System - TOP TIER Detergent Gasoline
    • Emissions - Reduced Performance Or Sag
  • Starting problems
    • Fuel System - TOP TIER Detergent Gasoline
    • Engine - Hard Start/Poor Warm Up Performance
• 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 - TOP TIER Detergent Gasoline
  • Fuel System - GM Fuel System Treatment PLUS(R) Info.
  • Fuel System - Fuel Injector Maintenance Cleaning
  • Fuel System - TOP TIER Detergent Gasoline (Canada)
  • Engine/Fuel System - Oil/Fuel Additive Information
  • Fuel System - E85 Fuel Usage Precaution
  • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • Emissions - Reduced Performance Or Sag
  • 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 - Provisions for Altitude Adjustments
  • Engine Controls - Diagnostic Chart Revisions
  • Carburetor - Adjustment Specification Revisions
  • Fuel - Idle Speed Control Explanation
  • Fuel - How Fuel Economy Is Determined
  • Engine - Effects of Top Engine Cleaner On CAT Converter
  • Engine - Hard Cold Start Diagnostic Procedures
  • TPS - Settings
  • Engine Controls - TPS Specifications
  • Throttle Position Sensor - Service
  • Engine Controls - TPS Is Not Adjustable
  • Engine - Reduced Performance, Poor Idle or Surge
  • Fuel - Normal Pump Run-On
  • A/T - 3rd-2nd, 2nd-1st Gear Coastdown Clunk
  • Fuel Injector - Preventing Electrical Damage During Test
  • TBI Fuel Injectors - Remanufactured Parts Available
  • Tools - Introduction Of The Fuel Injector Tester
  • CCC - Revised Varajet Carburetor Pre-Set Procedure
  • Accelerator Pumps, VITON - Two Types Available
  • Fuel Line - O-Ring Composition
  • Tools - Fuel Line Wrench Number Incorrectly Listed
  • Threadlocking Compound - Packaging Change
  • Engine Controls - Updated Rough/Unstable Idle Chart
  • Accelerator Pump, VITON - Additional Part Numbers
  • Engine - Hard Start/Poor Warm Up Performance
  • Fuel Tank Vent Valves - Undercoating
  • Fuel - Minimum Idle Speed Adjustment Warning
  • Fuel - Reformulated/Oxygenated Gasolines
  • Fuel - Use of MTBE At 15% or Less In Gasolines