Crankcase Ventilation System Inspection/Diagnosis. Chevrolet Corvette 2003

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2003 🢒 Corvette 🢒 Brakes 🢒 Hydraulic Brakes 🢒 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)