Question about 1996 Chevrolet Blazer

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* Faulty vent valve * Open, short or excessive resistance on Vent valve control circuit * Blockage of vent valve * Bad PCM

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  • Anonymous Mar 23, 2014

    vent valve

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  • Master
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You will have to replace the evap vent valve for the emisions system usually located at the charcoal canister under the vehicle near the fuel tank.

Posted on Jan 30, 2010

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Posted on Jan 02, 2017

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2 Answers

Code po 441 and po 446 what does these mean 2000 toyota tundra


A code P0441 could mean one or more of the following has happened:

Bad vacuum switch Broken or damaged EVAP line

canister Open in PCM purge command circuit

Open 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




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

Jul 03, 2014 | 2000 Toyota Tundra

1 Answer

1996 chevy blazer 4wd 4.6 liter evap code p0446? what is the problem?


P0446 Evaporative Emmission Control System Vent Control Circuit

Evap vent valve has only one purpose. It closes in order to seal the vent so the EVAP system can pressurize and ensure there are no leaks.

This code could mean one or more of these issues have happened:

Faulty vent valve
Open, short or excessive resistance on Vent valve control circuit

Blockage of vent valve

Bad PCM

Here are some things you can 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

Oct 17, 2013 | 1996 Chevrolet Blazer

1 Answer

What to do for a po446 code


Hi there:
DTC P0446 - Evaporative Emmission Control System Vent Control Circuit

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

About the possible solutions with this 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

Additionally, I suggest to check this information in the LINK.

Hope this helps.

Mar 18, 2013 | Cars & Trucks

1 Answer

P0446 EVAPORATIVE EMISSION VENT CONTROL CIRCUIT


DTC P0446 - Evaporative Emission Control System Vent Control Circuit Malfunction
Evap vent valve has only one purpose. It closes in order to seal the vent so the EVAP system can pressurize and ensure there are no leaks. Evap vent valve is usually supplied Batt. voltage with key on. The ECM's driver controls the ground, and when grounded, activates the valve (closing it). If the ECM detects a short to ground, and open,or a short to battery voltage on the control circuit, P0446 will set. Code also may refer to ECM detecting that EVAP system is unable to achieve or maintain vacuum during test. There will be no obvious symptoms to driver, other than MIL illumination.

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 (remember to rating this free answer and leave us some testimonial comment).

Oct 12, 2011 | 2003 Pontiac Vibe

1 Answer

Error code p0446 hyundai santa fe 2004


this is an obd2 trouble code table, it can help you understand the meaning of code.
for the p0446
Causes:
Faulty vent valve
Open, short or excessive resistance on Vent valve control circuit
Blockage of vent valve
Bad PCM
Possible Solutions:
Replace Vent valve
Repair open, short, or resistance problem in control circuit
Repair open, or short, or resistance problem in power circuit
Replace PCM

Jul 14, 2011 | Hyundai Santa Fe Cars & Trucks

1 Answer

How do you repair P0446 trouble code on a 2000 pontiac grand prix gtp?


P0446 - Evaporative Emmission Control System Vent Control Circuit
Evap vent valve has only one purpose. It closes in order to seal the vent so the EVAP system can pressurize and ensure there are no leaks. Evap vent valve is usually supplied Batt. voltage with key on. The ECM's driver controls the ground, and when grounded, activates the valve (closing it). If the ECM detects a short to ground, and open,or a short to battery voltage on the control circuit, P0446 will set. Code also may refer to ECM detecting that EVAP system is unable to achieve or maintain vacuum during test.

Symptoms: There will be no obvious symptoms to driver, other than MIL illumination.

Causes: 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

Possible Solutions: 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


Review this information, Test it and tell us news.

Feb 15, 2011 | 2000 Pontiac Grand Prix

2 Answers

Code po446


P0446 - Evaporative Emmission Control System Vent Control Circuit

Evap vent valve has only one purpose. It closes in order to seal the vent so the EVAP system can pressurize and ensure there are no leaks. Evap vent valve is usually supplied Batt. voltage with key on. The ECM's driver controls the ground, and when grounded, activates the valve (closing it). If the ECM detects a short to ground, and open,or a short to battery voltage on the control circuit, P0446 will set. Code also may refer to ECM detecting that EVAP system is unable to achieve or maintain vacuum during test.

Causes: 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

Possible Solutions: 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

I hioe this helps to solve it.

Nov 17, 2010 | 1999 Chevrolet Silverado 1500

1 Answer

P0446 code what is this? how can it be fix?


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

Sep 08, 2010 | 2003 Chevrolet Suburban 1500

1 Answer

Po446


P0446 - Evaporative Emmission Control System Vent Control Circuit

Evap vent valve has only one purpose. It closes in order to seal the vent so the EVAP system can pressurize and ensure there are no leaks. Evap vent valve is usually supplied Batt. voltage with key on. The ECM's driver controls the ground, and when grounded, activates the valve (closing it). If the ECM detects a short to ground, and open,or a short to battery voltage on the control circuit, P0446 will set. Code also may refer to ECM detecting that EVAP system is unable to achieve or maintain vacuum during test.

Symptoms: There will be no obvious symptoms to driver, other than MIL illumination.

Causes: 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

Possible Solutions: 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 help to solve it (remember comment and rated this).

Jul 27, 2010 | 2000 Hyundai Elantra

1 Answer

Check engine code "P0446 Evap Control System Vent Control Circ"


Unfortunately, this code has nothing to do with the gas cap....
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
Here are some things you could try to fix it:
  • Replace Vent valve
  • Repair open, short, or resistance problem in control circuit
  • Repair open, or short, or resistance problem in power circuit
  • Replace PCM


Nov 17, 2009 | 2002 Toyota Corolla

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