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Home >> Chevrolet >> 2022 >> Camaro LS, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 28 (Engine Mechanical - 6.2L - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> Crankcase Ventilation System Inspection/Diagnosis

Crankcase Ventilation System Inspection/Diagnosis

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Symptom Correction
External oil leak Inspect for any of the following conditions:
  • Restricted or kinked PCV hose or engine vent hose
  • Damaged, incorrect, or incorrectly installed PCV hose
  • Excessive crankcase pressure
  • Restricted or blocked PCV valve
Rough Idle Inspect for any of the following conditions:
  • Restricted or kinked PCV hose or engine vent hose
  • Leaking (damaged) PCV hose
  • Vacuum hoses worn or not properly installed
  • PCV valve leaking or stuck open
Stalling or slow idle speed Inspect for any of the following conditions:
  • Restricted or kinked engine vent hose
  • Leaking (damaged) PCV hose
  • Restricted or blocked PCV valve
High idle speed Inspect for the following conditions:
  • Inspect for a leaking (damaged) PCV hose
  • PCV valve leaking or stuck open
  • PCV tube from PCV valve to intake manifold disconnected
Sludge in the engine Inspect for restricted or kinked PCV hose or engine vent hose
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