PCV System
Note. Do not permanently remove or render inoperative any part of the vehicle emission control system including related hardware. Failure to comply may violate applicable state and federal law.
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 crankcase ventilation tube
- is connected to the PCV valve and the intake manifold fitting with a spring clamp on the manifold end.
The PCV valve
- varies the amount of blow-by vapors returned to the intake manifold based on available engine vacuum.
- threads into the RH valve cover.
The engine emission control system consists of the PCV system.
Scheme 8
| Item | Part Number | Description |
|---|---|---|
| 1 | 6A505 | LH valve cover |
| 2 | 9F805 | Air Cleaner (ACL) outlet tube |
| 3 | 9G641 | Evaporative Emission (EVAP) canister purge valve |
| 4 | 9S455 | Upper intake manifold |
| 5 | 6A666 | PCV valve |
| 6 | 6582 | RH valve cover |
| 7 | 9E857 | EVAP canister |
| 8 | Fuel vapor vent valve (part of 9002) | |
| 9 | Fuel vapor vent valve (part of 9002) | |
| 10 | 9034 | Fuel tank filler pipe |
| 11 | 9002 | Fuel tank |
| 12 | Fuel Tank Pressure (FTP) sensor (part of 9C047) | |
| 13 | 9275 | Fuel level sensor |
ITEM DESCRIPTION TABLE
Note. Do not permanently remove or render inoperative any part of the vehicle emission control system including related hardware. Failure to comply may violate applicable state and federal law.
The engine emission control system consists of the 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 vent oil separator.
- crankcase ventilation tube.
- PCV heater element.
- PCV valve.
The crankcase vent oil separator
- is retained by 3 bolts, mounted to the RH valve cover.
The crankcase ventilation tube
- is connected to the PCV valve and the PCV heater element with a quick connect coupling at each end.
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.
- utilizes an electronic internal heater.
- threads into the crankcase vent oil separator, mounted on the RH valve cover.
The PCV heater element
- heats the ventilating air and blow-by vapors going to the intake manifold.
- is retained by 2 screws, mounted to the intake manifold.
Scheme 9
| Item | Part Number | Description |
|---|---|---|
| 1 | 6A505 | LH valve cover |
| 2 | 9R530 | Air Cleaner (ACL) outlet tube |
| 3 | 9G271 | Evaporative Emission (EVAP) canister purge valve |
| 4 | 9S455 | Upper intake manifold |
| 5 | 6A666 | PCV valve |
| 6 | 6A785 | Crankcase vent oil separator |
| 7 | 6582 | RH valve cover |
| 8 | 9E857 | EVAP canister |
| 9 | Fuel vapor vent valve (part of 9002) | |
| 10 | Fuel vapor vent valve (part of 9002) | |
| 11 | 9034 | Fuel tank filler pipe assembly |
| 12 | 9002 | Fuel tank |
| 13 | Fuel Tank Pressure (FTP) sensor (part of 9C047) | |
| 14 | 9275 | Fuel level sensor |
ITEM DESCRIPTION TABLE
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 | WSS-M2C930-A |
MATERIAL SPECIFICATIONS TABLE
Scheme 10
| Item | Part Number | Description |
|---|---|---|
| 1 | Crankcase ventilation tube spring clamp (part of 6K817) | |
| 2 | 6K817 | Crankcase ventilation tube |
| 3 | 6A666 | PCV valve |
| 4 | PCV valve O-ring seal (part of 6A666) |
ITEM DESCRIPTION TABLE
| 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 | WSS-M2C930-A |
MATERIAL SPECIFICATIONS TABLE
Note. Early build engine with PCV heater element and electric heated PCV valve shown in illustration, late build engine without PCV heater element and standard PCV valve similar.
Scheme 11
| Item | Part Number | Description |
|---|---|---|
| 1 | 6A666 | PCV valve |
| 2 | 14A464 | PCV valve electrical connector (early build only) |
| 3 | Crankcase ventilation tube-to-PCV valve quick connect coupling (part of 6C658) | |
| 4 | 6C658 | Crankcase ventilation tube |
| 5 | 6A485 | Crankcase vent oil separator |
ITEM DESCRIPTION TABLE
| 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 | WSS-M2C930-A |
MATERIAL SPECIFICATIONS TABLE
Scheme 12
| Item | Part Number | Description |
|---|---|---|
| 1 | W503276 | PCV heater element bolt (2 required) |
| 2 | 9F624 | PCV heater element |
| 3 | 9L479 | PCV heater element O-ring seal |
| 4 | 14A464 | PCV heater element electrical connector |
| 5 | 9S455 | Intake manifold |
| 6 | 6C658 | Crankcase ventilation tube |
| 7 | Crankcase ventilation tube-to-PCV heater element quick connect coupling (part of 6C658) |
ITEM DESCRIPTION TABLE
Crankcase Vent Oil Separator - 3.5L GTDI
Note. Early build engine with PCV heater element and electric heated PCV valve shown in illustration, late build engine without PCV heater element and standard PCV valve similar.
Scheme 13
| Item | Part Number | Description |
|---|---|---|
| 1 | 6C658 | Crankcase ventilation tube |
| 2 | Crankcase ventilation tube-to-PCV valve quick connect coupling (part of 6C658) | |
| 3 | 14A464 | PCV valve electrical connector (early build only) |
| 4 | 6A485 | Crankcase vent oil separator |
| 5 | 14A163 | Wire harness pin-type retainer |
| 6 | W701775 | Crankcase vent oil separator bolt (3 required) |
| 7 | 6582 | RH valve cover |
ITEM DESCRIPTION TABLE