LEMON Manuals: Even more car manuals for everyone
Home >> Isuzu >> 2007 >> i-290 LS, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 70 (Engine Mechanical - 4.6L - Introduction) >> Diagnostic Information and Procedures >> Crankcase Ventilation System Inspection/Diagnosis

Crankcase Ventilation System Inspection/Diagnosis

WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
Crankcase Ventilation System Inspection/Diagnosis

Concern Action
External oil leak Inspect for any of the following conditions:
  • Plugged positive crankcase ventilation (PCV) orifice tube.
  • Plugged or kinked PCV hoses.
  • Damaged or incorrectly installed PCV hoses.
  • Excessive crankcase pressure.
Rough Idle Inspect for any of the following conditions:
  • Plugged PCV orifice tube.
  • Plugged or kinked PCV hoses.
  • Leaking or damaged PCV hoses.
Stalling or slow idle speed Inspect for any of the following conditions:
  • Plugged PCV orifice tube.
  • Plugged or kinked PCV hoses.
  • Leaking or damaged PCV hoses.
High idle speed Inspect for a leaking or damaged PCV hoses.
Sludge in the engine Inspect for any of the following conditions:
  • Plugged PCV orifice tube.
  • Plugged or kinked PCV hoses.
scientia non olet · About LEMON Manuals