PCV System
WARNING: This page is about a different car, the 2007 Mercury Mariner and 2007 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
The PCV system uses intake manifold vacuum to ventilate blow-by fumes from the crankcase and return the fumes to the intake manifold for combustion. The PCV valve varies the amount of blow-by gases returned to the intake manifold based on available engine vacuum. The PCV valve also prevents the entry of combustion backfiring into the crankcase.
| Item | Part Number | Description |
|---|---|---|
| 1 | 9G756 | Fuel rail pressure and temperature sensor |
| 2 | 9424A | Intake manifold |
| 3 | 6A666 | PCV valve |
| 4 | 9G641 | Evaporative emission (EVAP) canister purge valve |
| 5 | 6582 | Valve cover |
| 6 | 9B642 | Air cleaner outlet tube |
| 7 | 9D656 | Fuel vapor storage canister |
| 8 | 9F945 | EVAP canister vent solenoid |
| 9 | 9D656 | Fuel vapor storage canister (part of 9E857) |
| 10 | 9G712 | Fuel vapor vent valve |
| 11 | 9D653 | EVAP canister (9E857) |
| 12 | 9B328 | Dust separator |
| 13 | 9C052 | Fuel tank pressure (FTP) sensor (part of 9D668) |
| 14 | 9K007 | Fuel tank |
| 15 | 9H307 | Fuel pump (FP) module |
| 16 | 9034 | Fuel tank filler pipe assembly |