Question about 2001 Ford Windstar
That the best i could find for you hope it help you
Posted on Mar 30, 2015
Under the vehicle you should see a metal cover attached to the frame in the rear close to the gas tank remove that cover and you will find the vapor canister shown below and the vent solenoid that attaches to it by hoses wear safety glasses when trying to remove the cover so you don't get rust in your eye's and dirt from the chassis and use liquid wrench or w d 40 and you might need vise grips if the bolts are really rusted out and some new nuts & bolts have fun Amanda and be very careful p0ark the van out of harms way before you climb under it there's to many crazies out there I had some one back into my car while on jack stands when there was at least 15 parking spaces on the block and most of the street on the other side of me was empty I just made it out before the car hit the ground so I mean what I say be very careful where you do this or latch on to a dude or what ever floats your boat and let them do it good luck and be careful
Posted on Mar 29, 2015
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Posted on Jan 02, 2017
DTC P0446 Evaporative Emission (EVAP) Vent System Performance
The vehicle control module (VCM) monitors the performance of the evaporative emission (EVAP) system by applying a predetermined level of vacuum to the EVAP system and monitors the vacuum decay rate. The VCM sets this diagnostic trouble code (DTC) if the vacuum decay rate is more than a predetermined value. The VCM monitors the amount of vacuum and the amount of pressure in the EVAP system by monitoring the fuel tank pressure sensor. For this DTC, the VCM turns ON both the EVAP purge valve and the EVAP vent valve when the Conditions for Running the DTC are met. This applies an engine vacuum to a closed EVAP system. The VCM turns OFF both the EVAP purge valve and the EVAP vent valve when the system reaches a correct amount of vacuum. The EVAP system should quickly RELEASE the vacuum in the EVAP system with the EVAP purge valve OFF and the EVAP vent valve OFF (open). This test indicates a blocked or restricted EVAP vent path if the EVAP system fails to release the vacuum quickly enough.
Posted on Dec 06, 2008
here is a link to where you can down load a owners manual to help you
Posted on Mar 23, 2009
I have the same failure that occurred when smogging my Ford Ranger. The EVAP test was just added a couple of years ago and it tests for leaks in the gas tank vapor recovery system. What this is a system of vapor recovery lines that connect from the gas tank and goes to a canister then returns to the intake and on the next engine start and gets used, instead of leaking into the air.
The only issue is these lines can develop a leak at any of the connection points or along the rubber portions and can be a pain to replace depending on your application. So until you fix the leak you will fail this test since they pressurize the system and if there is a leak it won't hold the pressure.
Posted on May 22, 2009
Some might have an ses p0446, evap emissions vent circuit low. If you
take it to the dealer they want 300-400.00 to fix the problem. GM has a
service bulletin on this condition and have the updated part for 180.00,
thats suppose to eliminate this issue.
Basically the problem is, the evap purge vent valve gets clogged with dirt, especially if the truck is used in dirty conditions. Well I figured there had to be a cheaper way to cure this problem.
Here it is:
1) find the location of the vent valve; its under the truck, locate the charcoal canister on the front of the gas tank and trace the vent line to the vent valve.
2) Take the bracket loose with a 5/8 wrench.
3) Spin the valve around so the side with the hole is facing you.
4) Take an air compressor and blow the vent valve out.
5) reinstall and clear the code and it's fixed.
Now I know the updated part from gm is supposed to keep the valve from clogging ever again, but why spend the money when all you have to do is blow out the vent valve every 50k-100kmi and save your $$$!
Subject: DTC P0446 (Restricted/Blocked EVAP Vent Path) Set, Service Engine Soon (SES) Lamp Illuminated (Replace Hose/Evaporative Emission (EVAP) Canister Vent Asm) #02-06-04-037A - (02/02/2005)
- 1999-2003 Chevrolet Silverado Models
- 1999-2003 GMC Sierra Models
This bulletin is being revised to add model years. Please discard Corporate Bulletin Number 02-06-04-037 (Section 06 -- Engine/Propulsion System).
Some customers whose vehicles are operated in dusty type environments, such as farming or mining off-road type applications, may comment about the illumination of the instrument panel SES light, with a DTC of P0446 (Restricted/Blocked EVAP Vent Path) being set.
Dirt and dust intrusion into the EVAP canister vent hose assembly, resulting in restricted air flow, may cause this condition.
Part Number 15086429 Hose Asm-Evap Emis Cnstr Vent
Removal & Installation
Purge Solenoid Valve-2.2L (L61) Engine
Purge Solenoid Valve-2.4L Engines
NOTE The EVAP canister may have released carbon particles, which caused this part to fail, and may cause damage to other components. Check the EVAP canister for loose carbon before returning the vehicle to service.
Vent Solenoid Valve-2.2L & 2.4L Engines
Hope this help (remember commetn and rated this).
Posted on Apr 21, 2010
SOURCE: Bad Evap Vent Solenoid
On the passenger side of the car there it a canister next to the gas tank (right infront of the rear wheel) it's right there. You don't need to pull the wheels to access it.
Posted on Jun 14, 2010
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