CAUTION: Do not remove the PCV system from the engine. Operating engine without PCV system will reduce both fuel economy and engine ventilation. This will weaken engine performance and shorten life.Section 03-08: Engine Emission Control | 1996 F-150, F-250, F-350, F-Super Duty and Bronco Workshop Manual |
The positive crankcase ventilation (PCV) system cycles crankcase gases back through the engine (6007) where they are burned. The positive crankcase ventilation valve (PCV valve) (6A666) regulates the amount of ventilation air and blow-by fuel vapor to the intake manifold (9424) and prevents backfire from traveling into the crankcase. The positive crankcase ventilation valve is mounted in a vertical position.
CAUTION: Do not remove the PCV system from the engine. Operating engine without PCV system will reduce both fuel economy and engine ventilation. This will weaken engine performance and shorten life.
| Item | Part Number | Description |
|---|---|---|
| 1 | 6582 | Valve Cover |
| 2 | — | To Air Cleaner Outlet Tube (9B659) |
| 3 | 6758 | Crankcase Ventilation Tube |
| 4 | 9E926 | Throttle Body |
| 5 | 9424 | Intake Manifold |
| 6 | 6A666 | Positive Crankcase Ventilation Valve |