PCV System
The PCV system
- uses intake manifold vacuum to ventilate blow-by vapors from the crankcase.
- returns the vapors to the intake manifold for combustion.
The PCV system consists of the
- crankcase ventilation tube.
- PCV valve.
The PCV valve
- varies the amount of blow-by vapors returned to the intake manifold based on available engine vacuum.
- prevents combustion gases backfiring into the crankcase.
Scheme 15
| Item | Part Number | Description |
|---|---|---|
| 1 | 6A505 | LH valve cover |
| 2 | 9B659 | Air Cleaner (ACL) outlet pipe |
| 3 | 9S455 | Intake manifold |
| 4 | 9G641 | Evaporative Emission (EVAP) canister purge valve |
| 5 | 6582 | RH valve cover |
| 6 | 6A666 | PCV valve |
| 7 | 9002 | Fuel tank |
| 8 | 9034 | Fuel tank filler pipe |
| 9 | 9C052 | Fuel Tank Pressure (FTP) sensor (part of 9A228) |
| 10 | 9G676 | Fuel vapor solenoid separator assembly (part of 9E857) |
| 11 | 9E857 | EVAP canister |
ALL-WHEEL DRIVE (AWD) VEHICLES CHART
Scheme 16
| Item | Part Number | Description |
|---|---|---|
| 1 | 6A505 | LH valve cover |
| 2 | 9B659 | Air Cleaner (ACL) outlet pipe |
| 3 | 9S455 | Intake manifold |
| 4 | 9G641 | Evaporative Emission (EVAP) canister purge valve |
| 5 | 6582 | RH valve cover |
| 6 | 6A666 | PCV valve |
| 7 | 9002 | Fuel tank |
| 8 | 9034 | Fuel tank filler pipe |
| 9 | 9C052 | Fuel Tank Pressure (FTP) sensor (part of 9A228) |
| 10 | 9G676 | Fuel vapor solenoid separator assembly (part of 9E857) |
| 11 | 9E857 | EVAP canister |
FRONT WHEEL DRIVE (FWD) VEHICLES CHART
Refer to INTRODUCTION - GASOLINE MODELS .
Material
| Item | Specification |
|---|---|
| Motorcraft® SAE 5W-20 Premium Synthetic Blend Motor Oil XO-5W20-QSP (US); Motorcraft® SAE 5W-20 Super Premium Motor Oil CXO-5W20-LSP12 (Canada); or equivalent | WSSM2C930-A |
MATERIAL SPECIFICATIONS
Scheme 17
| Item | Part Number | Description |
|---|---|---|
| 1 | Crankcase ventilation tube spring clamp (part of 6A664) | |
| 2 | 6K817 | Crankcase ventilation tube |
| 3 | 6A666 | PCV valve |
| 4 | PCV valve O-ring seal (part of 6A666) |
CRANKCASE VENTILATION (PCV) VALVE COMPONENTS CHART