Question about 2005 Chevrolet Avalanche

Open Question

P0446 code How do I change purge/vent solenoid

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

  • 1 Answer

SOURCE: HAVE A TROUBLESHOOTING MESSAGE PO446

Evaporative Emission (EVAP) how to find a leak without replacing canister on chevy silverado 1500

Posted on Jan 18, 2010

taran_2005
  • 10515 Answers

SOURCE: I have 2 codes going

Hi,

P0442 - This indicates a fuel vapor leak in the EVAP control system. It means a very small leak has been detected. In fact, the leak can be from a hole as small as 0.04" in diameter. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.

You likely won't notice any drivability problems.

A code P0442 most likely means one or more of the following has happened:

  • A loose or improperly affixed gas cap
  • A non-conforming gas cap (i.e. not factory/original brand)
  • A small leak/hole in a fuel vapor hose/tube
  • Other small leak in EVAP system
  • Faulty vent o-ring seal

With a P0442, the most common repair is to:
  • Remove and reinstall the gas cap, clear the codes, and drive for a day and see if the codes come back.
  • Otherwise, replace the gas cap, or
  • Inspect the EVAP system for cuts/holes in tubes/hoses
Gas cap and any of the hoses under the hood. Best method is to have a "smoke" test done , which will pinpoint the leak in the shortest time and can be done by most shops these days.

P0446 - There is a complete technical bulletin for the same. Read the complete instructions :-

1. Raise the vehicle. Suitably support the vehicle.
2. Disconnect the EVAP canister vent valve electrical connector, if equipped.
3. Disengage the two vent valve pipe clips securing the pipe to the underbody. Remove the clips
from the underbody and discard.
4. Disconnect the vent valve pipe at the EVAP canister.
5. Remove and retain the EVAP canister vent valve bracket mounting bolt.
6. Remove the complete EVAP canister vent valve assembly with bracket attached and discard

moz-screenshot.pngmoz-screenshot-1.pngmoz-screenshot-2.pngtaran_2005_63.jpg

Important: The new canister vent valve will be installed in a new location, outside of the
frame.
7. Position and secure the new valve assembly to the frame bracket on the outside of the frame
using the existing hole and mounting bolt.
Tighten
Tighten the bracket mounting bolt to 12 N8. Connect the vent valve pipe to the EVAP canister.
9. Install the two vent valve pipe clips into the existing underbody holes.
10. Connect the EVAP canister vent valve electrical connector, if equipped.
11. Attach bulk 5/8" heater hose to the vent valve port and secure using a clamp. Run a length
as needed along the frame rail routing to the area above the transmission.
12. Cut the hose to determined length and install the supplied filter box. Secure using a clamp.
13. Remove the transmission support and lower the transmission assembly as necessary to allow
for access to the new filter box location


taran_2005_64.jpg

14. Secure the filter box to the transmission vent hose just forward of the hose tee-section using
a tie strap. DO NOT pinch or restrict the transmission vent hose. The filter box opening
should be pointing downward.
15. Raise the transmission and reinstall the transmission support.
16. Tie strap the hose as needed along the frame rail in order to keep the hose away from pinchpoints
and heat sources.
17. Lower the vehicle.

Parts Information
Put unused material on shelf for future use.
Part Number Description Qty Material Allowance
19152345 (1999-2003
Model Year)
Solenoid Kit, EVAP Emission
Canister Vent Valve
1 --
19152349 (2004-2008
Model Year)
Solenoid Kit, EVAP Emission
Canister Vent Valve
1 --
9438383 (5/8" X 25'
roll)
Hose
Cut to
Length
$10.80 USD ($22.59
CAD)
12337820 (10 per
pack)
Tie-Strap 5 $3.80 USD ($4.55 CAD)
15620999 (10 per
pack)
Clamp
2 (1999-
2003)
or
4 (2004-
2008)
$3.78 USD ($7.08 CAD)
(1999-2003)
or
$7.56 USD ($14.17 CAD)
(2004-2008


Let me know,if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Posted on Feb 17, 2011

  • 1252 Answers

SOURCE: i have a p0446 code

michael_cass_34.jpg Here it is..not too clear...best i can do...Hope this helps you ???

Posted on Jun 10, 2011

  • 18 Answers

SOURCE: I have a service engine

vent solenoid is that open or close the air to engine when you stop engine in emergency this solenoid close the air to engine. so you have to check the air flap.

Posted on Sep 01, 2011

  • 14036 Answers

SOURCE: Which solonoid do I fix on a 2000 Impala Evap System (code P0441) The vent solonoid or purge solonoid?

you see code po441 the purge solenoid could be faulty or disconnected. if you have problem with evap switch to vent solenoid you would smell gas fumes in vechicle.check make sure gas cap on tight not leaking because it will set off code po441.

Posted on Feb 07, 2012

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

3 Answers

Code po446 what is it


Its what is called the EVAP. system the code is for the vent solenoid .Gas vapor in a vacuum is drawn from the fuel tank when this vent is commanded to be open drawn into a canister filled charcoal and stored until the canister purge solenoid is commanded to open .
This happens when the engine speed is at a higher RPM level and is supposed to send the vapor to the engine to be burned instead of VOC'S going into the atmosphere .But its a crazy lie the last time I filled up more VOCS got into the atmosphere then a gas tank vent could do in 6 month or so .
You can try cleaning the filter in the vent solenoid it might work but the part is about 70 dollars its in the rear between the tank and the canister look for hoses .

Jun 18, 2016 | 2006 Chevrolet Impala

1 Answer

Where is the purge valve solonoid for a 2000 chevy cavalier?


How do I test a purge solenoid? / Diagnosing an EVAP ...

www.ericthecarguy.com/.../13335-how-do-i-test-a-purge-solenoid-diagn...
My brothers 2000 Chevy Cavalier has a P0440 code. ... the PCM will test the circuit condition of the purge valve solenoid and vent valve solenoid so with the key ...

P0446 2000 chevy S10 4WD Replacing EVAP Vent Valve ...

? 7:54
https://www.youtube.com/watch?v=EVWDc9sM1Co
May 7, 2014 - Uploaded by omar ERA
code .P0446. ... Chevy Truck Hard To Fill Gas Tank - GM EVAP Codes P0442, P0446, P0455 or P0449 ...

EVAP Purge Solenoid Removal - YouTube

? 4:24
https://www.youtube.com/watch?v=Xj605HENFno
Feb 26, 2008 - Uploaded by richpin06a
EVAP Purge Solenoid Removal Saturn S-series. ... Hi, is thispurge can solenoid in the same location for ...

Dec 19, 2015 | 2000 Chevrolet Chevrolet Cavalier Base

1 Answer

Where is purge valve located?


How to test and replace the EVAP Canister Purge Volume ...

? 13:49
https://www.youtube.com/watch?v=QnVUBYdFHGI
Mar 29, 2014 - Uploaded by CarsNToys
The EVAP canister purge control volume control valve is operated by a step motor for control of flow rate of fuel vapor fromEVAP canister.

How To Install Replace Vapor Canister Solenoid Purge ...

? 2:14
https://www.youtube.com/watch?v=TZ6ZB_acC9w
Sep 16, 2014 - Uploaded by 1A Auto Parts
http://www.1aauto.com/vapor-canister-purge-solenoid-valve-ac-delco- ... How To Test and Replace EVAP Canister Vent ControlValve P0446 ...

EVAP Purge Solenoid Removal - YouTube

? 4:24
https://www.youtube.com/watch?v=Xj605HENFno
Feb 26, 2008 - Uploaded by richpin06a
EVAP Purge Solenoid Removal Saturn S-series. ... How To Test and Replace EVAP Canister Vent Control Valve P0446 - Duration: 6:18. by ...


Dec 18, 2015 | Cars & Trucks

1 Answer

Where is purge valve solenoid located?


Mar 16, 2014 - 2 posts - ‎1 author
I have a 2003 Vue 3.0L 2wd.After fueling I have trouble starting, it cranks but I have to pump it a couple of time then it starts, Sometimes after it ... 2008 Saturn Vue Purge valve canister solenoid location ...
9 posts
Aug 24, 2013
access to vent valve solenoid - SaturnFans.com Forums
2 posts
Jan 20, 2013
Service engine soon light: P0440 - SaturnFans.com Forums
6 posts
Apr 15, 2010
Code P0446 (evap solenoid) and now I can't fill the gas ...
16 posts
Nov 17, 2007
More results from www.saturnfans.com

EVAP Solenoid Location - YouTube

? 2:17
https://www.youtube.com/watch?v=jIKaPF2Yw3I
Mar 20, 2007 - Uploaded by richpin06a
Saturn EVAP Solenoid Location. ... How To Test and Replace EVAP Canister Vent Control Valve P0446 - Duration: 6:18. by CarsNToys ...

EVAP Purge Solenoid Removal - YouTube




Dec 11, 2015 | 2003 Saturn VUE

1 Answer

2007. What are the probable causes of DTC P0446?


DTC P0446: Evaporative Emissions (EVAP) Vent System Performance
Circuit/System Description
This DTC tests the evaporative emission (EVAP) system for a restricted or blocked EVAP vent path. The control module commands the EVAP canister purge solenoid valve Open and the EVAP canister vent solenoid valve Closed. This allows vacuum to be applied to the EVAP system. Once a calibrated vacuum level has been reached, the control module commands the EVAP canister purge solenoid valve Closed and the EVAP canister vent solenoid valve Open. The control module monitors the fuel tank pressure (FTP) sensor for a decrease in vacuum. If the vacuum does not decrease to near 0 inch H2O in a calibrated time, this DTC sets.
Diagnostic Aids
?€¢
An intermittent condition could be caused by a damaged EVAP vent housing, a temporary blockage at the EVAP canister vent solenoid valve inlet, or a pinched vent hose. A blockage in the vent system will also cause a poor fuel fill problem.


?€¢
An EVAP canister, vent hose, or vent solenoid valve that has restricted flow may cause this DTC to set. Using a purge solenoid command with a scan tool will allow vacuum to be applied to the system instead of pressure. With the engine running, the EVAP canister vent solenoid valve open, and the EVAP canister purge solenoid valve commanded to 100 percent, the fuel tank vacuum should not increase to more than 5 inches H2O.


?€¢
An EVAP canister filter that is restricted can cause this DTC to set. Refer to Evaporative Emission Canister Replacement .


?€¢
Disconnecting one component at a time while the EVAP system is under flow will help to pinpoint a restriction in the system


Do you have a scan tool that reads data PID'S ?
Your FTP - fuel tank pressure sensor could be at fault !

    Ignition ON and fuel cap removed, verify that the FTP sensor parameter is between 1.3-1.7 volts. ?‡'
    If not within the specified range, go to the FTP sensor section in Circuit/System Testing.

  1. Install the fuel cap.
  2. With the engine running, the EVAP canister vent solenoid valve open, and the EVAP canister purge solenoid valve commanded to 100 percent, the fuel tank vacuum should not increase to more than 12 inches H2O.
?‡'
If the fuel tank vacuum is greater than the specified range, go to the restriction section in Circuit/System Testing.



If

Sep 06, 2015 | Chevrolet Impala Cars & Trucks

2 Answers

What does code p0446 mean on a 2001 Buick Centry?


P0446 Evaporative Emission Control System Vent Control Circuit Malfunction The code P0446 is set when the engine computer recognizes a fault or restriction at the vent control part of the Evaporative emission control system (EVAP). The description of the fault varies between different car manufacturers, but one thing is common, the code P0446 doesn't directly point to a defective part; some testing might be required to pinpoint the faulty component. What can cause the code P0446: - faulty vent control valve - blockage at the vent hose, vent filter or vent control valve - open or short in the vent control valve circuit - bad charcoal canister - EVAP system leak - faulty EVAP system pressure sensor - bad vacuum switching valve (VSV) - stuck open purge valve (solenoid)

Aug 13, 2014 | 2001 Buick Century

1 Answer

Codes 446 and 452


P0446 has nothing to do with the canistor !
DTC P0446 Evaporative Emission (EVAP) Vent System Performance
This DTC tests the evaporative emission (EVAP) system for a restricted or blocked EVAP vent path. The control module commands the EVAP canister purge solenoid valve Open and the EVAP canister vent solenoid valve Closed. This allows vacuum to be applied to the EVAP system. Once a calibrated vacuum level has been reached, the control module commands the EVAP canister purge solenoid valve Closed and the EVAP canister vent solenoid valve Open. The control module monitors the fuel tank pressure (FTP) sensor for a decrease in vacuum. If the vacuum does not decrease to near 0 inches H2O in a calibrated time, this DTC sets.
DTC P0452 Fuel Tank Pressure (FTP) Sensor Circuit Low Voltage


How to troubleshoot an EVAP Pressure Sensor problem P0452 GM

EVAP Vent Solenoid Code P0446 The solenoid is stuck open !

Apr 23, 2017 | 2005 Chevrolet Silverado 1500HD

2 Answers

P0446 code 1998 gmc jimmy how do I fix this? where is it located?


Hi there:

A code P0446 could mean one or more of the following has happened:
- Faulty vent valve
- Open, short or excessive resistance on Vent valve control circuit
- Blockage of vent valve
- Bad PCM




With a P0446 OBD-II trouble code, here are some things to try:
- Replace Vent valve
- Repair open, short, or resistance problem in control circuit
- Repair open, or short, or resistance problem in power circuit

- Replace PCM




Hope this helps.

May 30, 2012 | 1998 GMC Jimmy

1 Answer

I got a Error Code P1441 Definition EVAP System Flow During Non-Purge Conditions Possible Causes: EVAP purge valve, purge pipe, or the charcoal canister has a temporary blockage (this fault could...


P1442 usually gas cap. P1449 usually vent solenoid. P1441 usually always a faulty FTP sensor. Very problematic to Malibu, Grand Am Cavaliers and Aleros. That would be my first area to check. They are also known for poor wiring connections at the Left rear passthru connector to the fuel tank and vent solenoid, but not necessarily for that code.

Jan 25, 2011 | 2001 Pontiac Grand Am SE

1 Answer

Codes came up


P0446 This indicates that a part of the EVAP control system is no longer fuctioning correctly. EVAP emission canister purge is contolled by a valve which allows engine vacuum to pull stored fuel vapors from fuel tank into the engine to be burned, rather than be vented to atmosphere. 
A vacuum switch is used to detect when flow exists. If the PCM commands purge and sees that the switch is closed (indicating no detected purge flow) P0446 is set.

When the vapor pressure rises to a specified point, the ECM opens the VSV for canister closed valve. Pressure will increase rapidly because of the air allowed into the system. No increase or an increase below specified rate of pressure increase indicates a restriction on the air inlet side. The ECM closes the VSV for pressure switching valve. 
This action blocks air entering the fuel tank side of system. The pressure rise on the fuel tank side is no longer as great. If there was no change in pressure, the ECM will conclude the VSV for pressure switching valve did not close.

It is probly your evap canister vent valve is restricted. GM has a new design assy that repositions the vent so dirt wont plug it up, i suggest taking to a dealer to make sure, thay can use a tech2 to acurately diagnose the concern.

Good news is Likely, no symptoms will be discernible to the driver, other than the illuminated Check Engine Light.
Bed news A code P0446 could mean one or more of the following has happened:
Bad vacuum switch
Broken or damaged EVAP line or canister
Open in PCM purge command circuit
Open or short in Voltage feed circuit to Purge Solenoid
Faulty purge solenoid
Restriction in EVAP solenoid, line or canister
Corrosion or resistance in purge connector
Bad PCM

Good luck and hope this helps

Apr 20, 2009 | Chevrolet Tahoe Cars & Trucks

Not finding what you are looking for?
2005 Chevrolet Avalanche Logo

Related Topics:

45 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

75822 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8195 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...