Pacifica V6-3.8L (2008)
Canister Purge Control Valve: Customer Interest
Emissions - Hard Or No Start/MIL ON/DTC P0452 Set
NUMBER: 25-003-10
GROUP: Emissions Control
DATE: November 18, 2010
SUBJECT:
Mil Illumination And/Or Hard Start Or No Start
OVERVIEW:
This bulletin involves installing a Fuel/Vapor Separator in the evaporative system. This part is placed at the junction where the vapor lines connect the
fuel tank, canister and purge valve together.
MODELS:
2007 - 2008
(CS)
Pacific
SYMPTOM/CONDITION:
The vehicle operator may experience one or more of the following symptoms:
^
Mil Illumination for P0452 - Evap Pressure Switch Stuck Closed
^
Hard to start. Most likely when fuel tank is full from a recent over fill event.
^
No start. Most likely when fuel tank is full from recent over fill event.
These conditions can be caused by fuel that has accumulated in the evaporative lines:
^
A liquid sump can trap negative pressure in the canister line even though the fuel tank is vented. The ESIM switch may remain closed due to the
blockage.
^
Liquid fuel can be pulled into the purge valve and create a hard to start condition.
Installing this Fuel/Vapor Separator will ensure that no liquid will enter the purge valve and the canister line will communicate properly to the fuel tank.
DIAGNOSIS:
Using a Scan Tool (wiTECH) with the appropriate Diagnostic Procedures available in TechCONNECT, verify all engine systems are functioning as
designed. If DTC's are present other then the one listed above record them on the repair order and repair as necessary before proceeding further with this
bulletin.
If the vehicle operator describes or experiences the Symptom/Condition, perform the Repair Procedure.
PARTS REQUIRED:
REPAIR PROCEDURE:
1. Follow instruction sheet, K6855658 (found in the kit) to install the fuel/vapor separator.
2. Connect wiTech to the vehicle.
3. Select PCM.
4. Select Systems Test tab.
5. Select and Run the "ESIM Forced Monitor Test". Follow the instructions on the screen.
