Question about 2000 Chevrolet Silverado 1500

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Where to install the P1449 evaporative emission control system valve

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

suterman
  • 158 Answers

SOURCE: evaporative emissions control system pressure sensor 99' suburban

Hello, You have an emission sytem problem . The actual sensor is on top of the fuel tank that lets the system know how much air pressure is on the system, its made in the fuel pump module, but if your system has a po440 code do not waste your time replacing it. You (99 percent sure) will have a canister and vent valve. They will cost about 150 dollars to replace. Please rate my answer. Thank You.

Posted on Feb 23, 2009

Molson02536
  • 3854 Answers

SOURCE: I GET A TROUBLECODE 0440, STATING EVAPORATIVE

I will give you a little insight on what the P0440 fault is if you promise not to blame me if your taillight bulb burns out!!

A P0440 fault is general Evap system fault and could be as much as leaving your gas cap loose. ( but you probably wouldn't admit to it anyhow.)
Assuming that the gas cap is tight and not hanging off there are a couple of hoses that dry rot and could cause this fault to set, One is under the vehicle at the Canister and the other under the air cleaner. There is also a
switch called the NVLD (Natural Vapor Leak Detection) that is supposed to see a closed (sealed) input when the evaporative system is sealed and no leaks are present. If this switch goes bad it will also set this fault code.

A scan tool would be needed to see this input. With high mileage vehicle I would lean towards the hoses being cracked causing your problem. If you cant visual see any cracks in any hoses you may have to have a smoke test performed along with a scan tool connected to verify the fault and diagnose the problem.

I believe Auto Zone will scan your car for free but check the Gas Cap first or try replacing it. The gas cap is the cheapest to replace and most likely the problem.
Good luck and hope this helps. Oh and when you get the car scaned, they can clear your code. 
You can also try clearing the code by placing the ignition key to the run possition and removing the fuse to the ecm for 10 sec and placing it back in. 
Start the car and it may stall but let it, just start it up again and it should be fine. The computer is just re-learning the engine and you should have no code for now till it finds one.

Posted on May 02, 2009

  • 229 Answers

SOURCE: what does a Evaporative emission canister solenoid

go to rockauto.com and look up your vehicle and look under emmisions and they will show you the part and a picture of it,hope this helps.

Posted on Sep 21, 2009

tech1969
  • 442 Answers

SOURCE: 2005 Chevy Suburban 5.3L . getting P0488 code /

i work at GM and we replace the vent vavles alot,along with evap canister and filter. but mostly due to dirt and mud sucking up into the filter .the filter is located left side of transmission by cross member,unless its been relocated already.evap canister is located at the front of gas tank or rear of it ,vent vavle is close to it .it is connected to evap canister with a tube or pipe witch ever you would like to call it. check evap for dirt or dust could be clogged.

Posted on Oct 22, 2010

csmock132
  • 4669 Answers

SOURCE: getting an error code of PO449 for a check engine

You are right. You need the vent valve not the purge valve. The vent valve is a dealer item. Also this is a common problem and GM has released a bulletin on this that involves moving the location of the valve and running some new lines. It comes as a kit from GM, and it costs about a 100 bucks.

Posted on Dec 02, 2010

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1 Answer

Code p0498 came up


it is the circuit reading low voltage for the vent valve which would be a faulty valve or wiring connection problem the following sites can assist you with your problem
P0498 Evaporative Emission System Vent Valve Control Circuit Low P0498 Evaporative Emission System Vent Valve Control Circuit Low

Aug 16, 2016 | 2007 Honda Civic 1.8

1 Answer

What is a fuel trim bank 1 on a 2006 xc90 volvo an whatvis a evap emission system switching valve mean


  • P0170 Fuel Trim Malfunction Bank 1 OBDII Engine Light ... www.engine-codes.com/p0170.html Possible Causes and Repair Information for P0170 code. Learn what does P0170 means? P0170 Fuel Trim Malfunction Bank 1
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  • P2420 Volvo Evaporative Emission (EVAP) System Switching ... www.carobdcode.com/p2420-volvo-evaporative-emission-evap-system... Trouble Code Description: Evaporative Emission (EVAP) System Switching Valve Control Circuit High
  • P2420 Evaporative Emission System Switching Valve Control ... www.engine-codes.com/p2420.html P2420 Evaporative Emission System Switching Valve ... Evaporative Emission System Switching Valve ... P2420 SCION Evaporative Emission Pressure Switching Valve ...

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    Jul 20, 2016 | 2006 Volvo XC90

    1 Answer

    I have a truck that popped up a P0443 code up and I've been trying to see what it is so I can get it fixed thank yo


    P0443 - Evaporative Emission Control System Purge Control Valve Circuit Malfunction

    Possible causes: - Faulty Evaporative Emission (EVAP) Purge Solenoid Control
    - Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted
    - Evaporative Emission (EVAP) Purge Solenoid Control circuit poor electrical connection

    When is the code detected? An improper voltage signal is sent to Engine Control Module (ECM) through the valve.
    Possible symptoms: - Engine Light ON (or Service Engine Soon Warning Light)
    P0443 Description: The Evaporative Emission System (EVAP) canister purge volume control solenoid valve uses a ON/OFF duty to control the flow rate of fuel vapor from the EVAP canister. The EVAP canister purge volume control solenoid valve is moved by ON/OFF pulses from the Engine Control Module (ECM). The longer the ON pulse, the greater the amount of fuel vapor that will flow through the valve.

    P0443 Information for specific makes: P0443 ACURA
    P0443 CHRYSLER
    P0443 DODGE
    P0443 FORD
    P0443 HONDA
    P0443 INFINITI
    P0443 ISUZU
    P0443 JEEP
    P0443 KIA
    P0443 LAND-ROVER
    P0443 LEXUS
    P0443 MAZDA
    P0443 MERCEDES-BENZ
    P0443 MITSUBISHI
    P0443 NISSAN
    P0443 TOYOTA
    P0443 Evaporative Emission Control System Purge Control Valve Circuit...

    Jun 03, 2015 | Cars & Trucks

    1 Answer

    Code p1443


    without knowing your make or model:

  • p1443
    Evaporative Emission Control System Control Valve
  • audi
    EGR Valve Position Sensor Signal Too Low
  • bmw
    Leakage Diagnostic Pump Control Circuit Signal High
  • ford
    EVAP Control System Purge Control Solenoid or Purge Control Valve Fault
  • hyundi
    EVAP System Tank Cap Missing
  • infinity
    Evaporative Emission Control System Control Valve
  • lexus
    Secondary Air Injection Vacuum Switching Valve Circuit Malfunction Bank 2
  • mazda
    Evaporative Emission Control System Large leak detected
  • mitsubishi
    EVAP Purge Control Valve 2 Circuit Malfunction
  • nissan
    Evaporative Emission Control System Control Valve
  • suburu
    Evaporative Emission Control System Vent Control Function Problem
  • suzuki
    EVAP Purge Control Valve Malfunction- Stuck Open
  • toyota
    Secondary Air Injection Vacuum Switching Valve Circuit Malfunction Bank 2
  • volkswagon
    EGR Valve Position Sensor Signal Too Low
  • Dec 07, 2013 | Cars & Trucks

    1 Answer

    Toyota echo won't start code 440 441 446


    Error Code: P0440
    Fault Location:
    Evaporative Emission (EVAP) System - Malfunction
    Possible Cause:
    Malfunction Indicator Lamp (MIL) active.
    Soution:
    Check Evaporative Emission (EVAP) System Sealing.
    Check Evaporative Emission (EVAP) Canister Purge Regulator Valve .
    Check Evaporative Emission (EVAP) Canister Purge Solenoid Valve .

    Error Code: P0441
    Fault Location:
    Evaporative Emission (EVAP) System - Incorrect Flow Detected
    Possible Solutions:
    Check Evaporative Emission (EVAP) Canister Purge Regulator Valve .
    Perform Output Test.
    Check Evaporative Emission (EVAP) Canister Purge Solenoid Valve .
    Check Evaporative Emission (EVAP) Canister.
    Perform Basic Setting.
    Check Pipes between Tank Breathing and Throttle Body.

    Error Code: P0446
    Fault Location:
    Evaporative Emission (EVAP) System, Vent Control - Circuit Malfunction
    Possible Cause:
    Wiring harness.
    Evaporative emission (EVAP) canister purge valve.
    Engine control module (ECM).

    Feb 25, 2013 | 2002 Toyota ECHO

    1 Answer

    Evaporative Emission Control System Purge Control Valve Circuit Opeat's your problem?


    Possible causes- Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted
    - Evaporative Emission (EVAP) Purge Solenoid Control circuit poor electrical connection
    - Faulty Evaporative Emission (EVAP) Purge Solenoid Control

    Read more: http://engine-codes.com/p0444.html#ixzz296gIeNzB

    Oct 12, 2012 | 2001 Mercedes-Benz ML 320

    2 Answers

    Code says evaporator purge solenoid


    Which code specifically? Do not assume you need a new solenoid. Our recommendation will depend on the specific code and some troubleshooting results. I usually recommend checking over all the EVAP vacuum lines and the gas cap too whenever there is a purge valve code. Check the vacuum lines at the cannister in the left rear bumper. I will paste info on the purge solenoid below.

    P0440 Evaporative emission (EVAP) system - malfunction

    Possible causes: Hose connection(s), intake leak, EVAP canister purge valve


    P0441 Evaporative emission (EVAP) system - incorrect flow detected

    Possible causes: Hose connection(s), intake leak, EVAP canister purge valve


    P0442 Evaporative emission (EVAP) system - small leak detected

    Possible causes: Hose connection(s), intake leak, EVAP canister, EVAP canister purge valve


    P0443 Evaporative emission (EVAP) canister purge valve - circuit malfunction

    Possible causes: Wiring, EVAP canister purge valve, ECM


    P0444 Evaporative emission (EVAP) canister purge valve -open circuit

    Possible causes: Wiring open circuit, EVAP canister purge valve, ECM


    P0445 Evaporative emission (EVAP) canister purge valve -short circuit

    Possible causes: Wiring short circuit, EVAP canister purge valve, ECM


    P0450 Evaporative emission (EVAP) pressure sensor - circuit malfunction

    Possible causes: Wiring, EVAP pressure sensor, ECM


    P0455 Evaporative emission (EVAP) system - large leak detected

    Possible causes: Hose connection(s), intake leak, EVAP canister, EVAP canister purge valve


    P0456 Evaporative emission system - very small leak detected

    Possible causes: Mechanical fault, hose connection(s), EVAP pressure "sensor


    P0457 Evaporative emission system - leak detected (fuel cap loose/off)

    Possible causes: Mechanical fault, hose connection(s), EVAP pressure sensor


    P0458 Evaporative emission system, purge control valve -circuit low

    Possible causes: Wiring short to earth, EVAP valve


    P0459 Evaporative emission system, purge control valve -circuit high
    Possible causes: Wiring short to positive, EVAP valve


    Evaporative Emission Purge Solenoid

    Description & Operation
    The duty cycle EVAP canister purge solenoid (DCP) regulates the rate of vapor flow from the EVAP canister to the intake manifold. The Powertrain Control Module (PCM) operates the solenoid.
    During the cold start warm-up period and the hot start time delay, the PCM does not energize the solenoid. When de-energized, no vapors are purged. The PCM de-energizes the solenoid during open loop operation.
    The engine enters closed loop operation after it reaches a specified temperature and the time delay ends. During closed loop operation, the PCM cycles (energizes and de-energizes) the solenoid 5 or 10 times per second, depending upon operating conditions. The PCM varies the vapor flow rate by changing solenoid pulse width. Pulse width is the amount of time that the solenoid is energized. The PCM adjusts solenoid pulse width based on engine operating condition.
    Removal & Installation
    The duty cycle evaporative (EVAP) canister purge solenoid is located in the engine compartment near the brake master cylinder.

    1. Disconnect electrical connector at solenoid.
    2. Disconnect vacuum lines at solenoid.
    3. Lift solenoid slot from mounting bracket for Removal & Installation.

    To Install:
    1. Position solenoid slot to mounting bracket.
    2. Connect vacuum lines to solenoid. Be sure vacuum lines are firmly connected and not leaking or damaged. If leaking, a Diagnostic Trouble Code (DTC) may be set with certain emission packages.
    3. Connect electrical connector to solenoid.
    Purge solenoid location:

    jturcotte_65.gif
    EVAP cannister location:
    jturcotte_66.gif

    Nov 05, 2010 | 2000 Jeep Grand Cherokee

    2 Answers

    What does po440 on a 2003 saturn vue mean with a service engine soon light on


    That is a problem in the evaporative emission control system.
    Could be anything causing it
    Clogged filter in the charcoal canister
    A leak in one of the vacuum lines
    The purge valve not working,,,etc.
    The best thing is to take it and have it checked out, they might have to do a smoke test to find the problem.
    All they do is inject smoke into the system, if there is a leak the smoke will come out of it. All it takes is a pin hole in these emission systems to screw it all up.

    Aug 13, 2010 | 2003 Saturn VUE

    2 Answers

    I checked the codes and one comes up its po446. i dont under stand what it mean so i cant fix it to get the light to go out.


    P0446 Evaporative Emission System Vent Control Circuit.
    The following are descriptions of all Evaporative possible codes:

    P0441 Evaporative Emission System Incorrect Purge Flow
    P0442 Evaporative Emission System Leak Detected (small leak)
    P0443 Evaporative Emission System Purge Control Valve Circuit
    P0444 Evaporative Emission System Purge Control Valve Circuit Open
    P0445 Evaporative Emission System Purge Control Valve Circuit Shorted
    P0446 Evaporative Emission System Vent Control Circuit
    P0447 Evaporative Emission System Vent Control Circuit Open
    P0448 Evaporative Emission System Vent Control Circuit Shorted
    P0449 Evaporative Emission System Vent Valve/Solenoid Circuit
    P0450 Evaporative Emission System Pressure Sensor/Switch
    P0451 Evaporative Emission System Pressure Sensor/Switch Range/Performance
    P0452 Evaporative Emission System Pressure Sensor/Switch Low
    P0453 Evaporative Emission System Pressure Sensor/Switch High
    P0454 Evaporative Emission System Pressure Sensor/Switch Intermittent
    P0455 Evaporative Emission System Leak Detected (large leak)
    P0456 Evaporative Emission System Leak Detected (very small leak)
    P0457 Evaporative Emission System Leak Detected (fuel cap loose/off)
    P0458 Evaporative Emission System Purge Control Valve Circuit Low
    P0459 Evaporative Emission System Purge Control Valve Circuit High
    ---
    At least the cap isn't loose for the gas tank.

    I would clear the code with an OBD-II Scanner 'erase code' button, and see how long it takes for it to come back.

    Aug 06, 2010 | 1996 GMC Jimmy

    2 Answers

    P0441 EVAP Control System Incorrect Purge Flow


    Error Code: P0441
    Fault Location:
    Evaporative Emission (EVAP) System - Incorrect Flow Detected
    Possible Cause:
    Malfunction Indicator Lamp (MIL) active.
    Evaporative Emission (EVAP) Canister Purge Regulator Valve faulty/jammed.
    Evaporative Emission (EVAP) Canister Purge Solenoid Valve faulty/jammed.
    Evaporative Emission (EVAP) Canister Sealing faulty.
    Pipes between Tank Breathing and Throttle Body leaky/blocked.
    Hose connection(s).
    Intake leak.
    Possible Solutions:
    Check Evaporative Emission (EVAP) Canister Purge Regulator Valve .
    Perform Output Test.
    Check Evaporative Emission (EVAP) Canister Purge Solenoid Valve.
    Check Evaporative Emission (EVAP) Canister.
    Perform Basic Setting.
    Check Pipes between Tank Breathing and Throttle Body.
    VSV connector near air filter box disconnected.

    Jun 15, 2009 | 1996 Chevrolet Monte Carlo

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