Tune-up and Engine Performance Checks: Technical Service Bulletins

• Customer Interest
  • Intake Manifold - Rough Idle After Replacing Gasket
  • Wiring Harness - Rough Idle or No Start
  • Secondary Air Bypass - Idle Speed Hunting or Fluctuation
• By Symptom
  • Abnormal wear/deterioration
    • Coolant - Propylene Glycol Based Not Recommended
    • Wiring Harness - Rough Idle or No Start
  • Customer Interest
    • Intake Manifold - Rough Idle After Replacing Gasket
    • Wiring Harness - Rough Idle or No Start
    • Secondary Air Bypass - Idle Speed Hunting or Fluctuation
• All Technical Service Bulletins
  • Intake Manifold - Rough Idle After Replacing Gasket
  • Coolant - Propylene Glycol Based Not Recommended
  • Fuel Injector - Cleaner Kit for Improved Performance
  • Wiring Harness - Rough Idle or No Start
  • Secondary Air Bypass - Idle Speed Hunting or Fluctuation
  • Tools - Correct Use of Timing Light on DLI System