Question about 1996 Chevrolet Blazer

1 Answer

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

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 328 Answers

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

Posted on Oct 18, 2013

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: 1996 Chevy Blazer check engine light on

More then likely its the Canister Purge Solenoid. you can find it online at www.autozone.com the part number is PV140. And to replace it on blazer you have to remove the spare tire. Alot of people don't know where this part is so I hope this helps you and good luck.

Posted on Oct 14, 2008

  • 66 Answers

SOURCE: firing order for 4.3 liter chevy blazer

1-6-5-4-3-2

Posted on Jun 25, 2009

taran_2005
  • 10515 Answers

SOURCE: on a 1998 chevy blazer

Hi,

P0452 indicates a low voltage signal from the fuel tank pressure sensor, which converts fuel tank pressure into a voltage signal sent to the ECM.

Evaporative Emission Control System Pressure Sensor Low Input indicates a low voltage problem in the Fuel Tank Pressure Sensor (FTPS). What the fuel FTP sensor does is convert fuel tank absolute pressure into electrical signals and inputs the signal to the ECM/PCM, (Computer). First thing to do is make sure the gas cap is good and tightened properly. Given the gas cap's age, you may just want to replace it as the seal may be dry and leaking which would give you a low pressure signal. Then check the vacuum lines and wiring at the FTPS (Location-Fuel Tank) to be sure they are good, clean and tight. Barring a wiring problem it can be a bad FTPS.

Regarding the noise from clutch, it seems to be a bearing issue or the clutch plate/pad might have worn.

Hope i helped.

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


Posted on Jul 11, 2009

  • 495 Answers

SOURCE: need the fuse diagran fo chevy blazer s10 4wd 1991

go to autozone.com, enter your vehicle specs, and follow the prompts for the repair section, then to electrical diagrams..........and its FREE!

Posted on Jul 27, 2009

kel1guy2002
  • 3740 Answers

SOURCE: I need a firing order diagram for a 1999 Chevy S10

1-6-5-4-3-2

db33cb3.gif

Thanks for using FixYa.

Kelly

Posted on Jun 16, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

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

02 Chevy blazer p0155,p0446 codes. What to do?


EVAP Evaporative Emission Control System .follow this link for the P0446 fault , this is a problem with the Engine Evap valve , this link describes in detail the system etc. The other code P0155 is for the Front Oxygen sensor bank 2 , this could be a faulty wiring connection or the sensor its self so further diagnosis will be required .I would advice using a good quality fuel addative , one that covers the catalytic convertor as well as the usual engine parts, injectors etc as there may just be build up of carbon on the sensor that is restricting the signal being recieved , keep me posted if you wish

Feb 01, 2015 | 2002 Chevrolet Blazer

1 Answer

P0446 s10 blazer


code p0446 refers to evaporate emission (EVAP)system-vent control--circuit malfunction===causes--wiring--EVAP--canister purge valve--ECM
replace the purge valve

Dec 30, 2013 | Cars & Trucks

1 Answer

Where is evap canister on 1996 chevy blazer 4.3 liter


Check up under the driver side body behind the rear wheel (left rear). It should be tucked up under the body. It should have 3 hoses connected to it, and is a black rectangular looking plastic box.

Oct 17, 2013 | 1996 Chevrolet Blazer

1 Answer

How i repair the 446 code


Hi there:
DTC 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.

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; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Oct 26, 2012 | 1996 Chevrolet Blazer

1 Answer

Have a code come up code is 0446 on a 4.3 1996 sonoma


DTC 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 helps (remember to rate this answer).

Nov 03, 2010 | 1996 GMC Sonoma

1 Answer

What does code 446 mean on the 1996 Chevy Blazer?


P0446 = Evaporative Emission Control / System Vent Control Circuit Malfunction.

Check it, and before you replace the Evap Canister read this:

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)
Models: 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).
--------------------------------------------------------------------------------
Condition
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.

Cause
Dirt and dust intrusion into the EVAP canister vent hose assembly, resulting in restricted air flow, may cause this condition.

Correction
After following the Service Manual diagnostic P0446 and determining that the EVAP canister vent valve is the cause of the SES light, replace the existing EVAP canister vent hose assembly with a new assembly, P/N 15086429. This new assembly has an enhanced filtering capability and a filter element that can be easily removed and cleaned. To ensure correct installation, follow the procedure below.

Raise the vehicle. Suitably support the vehicle.
Disconnect the EVAP canister vent valve electrical connector.
Disconnect the vent valve pipe at the EVAP canister.
Remove and retain the EVAP canister vent valve bracket mounting bolt.
Disengage, from the underbody, the two vent valve pipe clips securing the pipe to the underbody.
Remove and discard the complete EVAP canister vent hose assembly.
Position and secure the new assembly to the underbody using the existing hole and mounting bolt.
Tighten
Tighten the bracket mounting bolt to 12 N·m (106 lb in).

Install the two vent valve pipe clips into the existing underbody holes.
Connect the vent valve pipe to the EVAP canister.
Connect the EVAP canister vent valve electrical connector.
Lower the vehicle.
When properly installed, the new EVAP canister vent hose assembly will be positioned outboard of the original installation location. This new location provides clearance for accessing the filter element for cleaning purposes. To access the filter element, disengage the filter cover to valve locking finger by gently lifting the finger upward while simultaneously rotating the filter body clockwise. After approximately 45 degrees of rotation, the filter can be disengaged from the valve by gently pulling outward. The filter cover can then be removed and the filter element and body can be washed with soap and water. Prior to reinstalling, ensure that the body and filter element are dry.

Parts Information
Part Number 15086429 Hose Asm-Evap Emis Cnstr Vent

Hope help with this.

Mar 18, 2010 | 1996 Chevrolet Blazer

1 Answer

How do you remove the starter from a 1996 chevy 4WD blazer?


NO, it's kind of tight, but it's not that bad. You do need to remove the torque converter cover, and slide/rotate it as much to the driver's side of the vehicle as possible.

Jan 21, 2009 | 1996 Chevrolet Blazer

Not finding what you are looking for?
1996 Chevrolet Blazer Logo

188 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

74896 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

7688 Answers

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

Answer questions

Manuals & User Guides

Loading...