Tune-up and Engine Performance Checks: Technical Service Bulletins

• Recalls
  • Recall 89V234000: Air Inlet Tube Replacement
  • Recall 90V044000: Air Inlet Tube Replacement
• Customer Interest
  • Engine - Lean Driveability Symptoms
  • Engine - Rough Idle/Hesitation/Backfire/Stalling
  • Engine - Hard Cold Starts/Hesitation/Stalls On Start-Up
    • Overview
    • Procedures, Warranty and Labor
    • Idle Speed Adjustment
    • Procedure # 1
    • Procedure # 2 Idle Air By-Pass Valve Cleaning Only
    • Warranty Coverage
    • Labor Standards Operations
    • Operation Description
• By Symptom
  • Customer Interest
    • Engine - Lean Driveability Symptoms
    • Engine - Rough Idle/Hesitation/Backfire/Stalling
    • Engine - Hard Cold Starts/Hesitation/Stalls On Start-Up
      • Overview
      • Procedures, Warranty and Labor
      • Idle Speed Adjustment
      • Procedure # 1
      • Procedure # 2 Idle Air By-Pass Valve Cleaning Only
      • Warranty Coverage
      • Labor Standards Operations
      • Operation Description
  • Driveability
    • Engine - Lean Driveability Symptoms
    • Engine - Rough Idle/Hesitation/Backfire/Stalling
    • Engine - Hard Cold Starts/Hesitation/Stalls On Start-Up
      • Overview
      • Procedures, Warranty and Labor
      • Idle Speed Adjustment
      • Procedure # 1
      • Procedure # 2 Idle Air By-Pass Valve Cleaning Only
      • Warranty Coverage
      • Labor Standards Operations
      • Operation Description
  • Poor performance
    • Engine - Rough Idle/Hesitation/Backfire/Stalling
  • Recalls
    • Recall 89V234000: Air Inlet Tube Replacement
    • Recall 90V044000: Air Inlet Tube Replacement
• All Technical Service Bulletins
  • Engine - Lean Driveability Symptoms
  • Engine - Rough Idle/Hesitation/Backfire/Stalling
  • Engine - Hard Cold Starts/Hesitation/Stalls On Start-Up
    • Overview
    • Procedures, Warranty and Labor
    • Idle Speed Adjustment
    • Procedure # 1
    • Procedure # 2 Idle Air By-Pass Valve Cleaning Only
    • Warranty Coverage
    • Labor Standards Operations
    • Operation Description
  • Engine - Water Entry Through Air Intake System
  • Recall 89V234000: Air Inlet Tube Replacement
  • Recall 90V044000: Air Inlet Tube Replacement
  • Octane Adjust Shorting Bar - Revised Procedures
    • Overview
    • 1989 Note, Remember and Pinpoint Test Schematic
    • 1990 Application, Component Location and Wire Color
    • 1991 Diagnosis By Symptom Chart
    • 1991 Pinpoint Test Note
    • 1991 Test Step KP1 Thru KP11
  • Ignition Timing Procedure - Manual Update
  • Engine - Valve Clearance Manual Revisions
    • Overview
    • 1988 Ranger 2.9L V-6 Engine
    • 1990 Ranger/Bronco II - Engine-2.9L V-6
    • 1989 Ranger - 2.9L V-6 Engine