Pinpoint Test HG: Positive Crankcase Ventilation (PCV) System: Introduction: Notes
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2005 Mercury Sable, 2005 Mercury Mountaineer, 2005 Mercury Monterey, 2005 Mercury Montego, and 2005 Mercury Mariner. However, it is still accessible from the selected car via links, so may be relevant.
This pinpoint test is intended to diagnose the following:
- Positive crankcase ventilation (PCV) valve (6A666) and related vacuum lines.
- Electrically heated PCV valve (6A666) and heater circuit. Both PCM and non-PCM controlled.
- Electrically heated PCV tube (9F624) and heater circuit. Both PCM and non-PCM controlled.
- Powertrain control module (PCM) (12A650).
- PCV Thermal Extension Harness (12A580).
NOTE:
Electrically heated PCV system only, refer to
POSITIVE CRANKCASE VENTILATION (PCV) SYSTEM
for additional information.