Crankcase Ventilation System Inspection/Diagnosis. Oldsmobile Aurora 2001

For 1990-2009 cars only

Makes 🢒 Oldsmobile 🢒 2001 🢒 Aurora 🢒 Engine 🢒 Engine Mechanical - 4.0L 🢒 Crankcase Ventilation System Inspection/Diagnosis

Concern

Action

External oil leak

Inspect for any of the following conditions:

•	Plugged positive crankcase ventilation (PCV) valve.

•	Plugged or kinked PCV hose(s).

•	Damaged or incorrectly installed PCV valve or hose(s).

•	Excessive crankcase pressure.

Rough Idle

Inspect for any of the following conditions:

•	Plugged PCV valve.

•	Plugged or kinked PCV hose(s).

•	Leaking (damaged) PCV valve or hose(s).

Stalling or slow idle speed

Inspect for any of the following conditions:

•	Plugged PCV valve.

•	Plugged or kinked PCV hose(s).

•	Leaking (damaged) PCV valve or hose(s).

High idle speed

Inspect for a leaking (damaged) PCV valve or hose(s).

Sludge in the engine

Inspect for any of the following conditions:

•	Plugged PCV valve.

•	Plugged or kinked PCV hose(s).