Initial Inspection and Diagnostic Overview

1. Visually inspect PCV system components:
^ Rough idle
^ Slow starting
^ High oil consumption
^ Loose, leaking, clogged, or damaged hoses

2. Check the fresh air supply hose and the PCV hose for air leakage or flow restriction due to loose fit, hose splitting, cracking, kinking, nipple damage, poor rubber grommet fit due to hardening, or other damage.
3. If a component is suspected as the obvious cause of a problem, correct the cause before going to the next step.
4. If system inspection is okay, proceed to Pinpoint Tests.