Question about 1996 Oldsmobile Bravada

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Purge Valve solenoid gets clogged from the little pebbles from the vapor canister, I replaced the vapor canister and Purge Valve Solenoid but the new PVS gets clogged again

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  • Fred
    Fred Dec 19, 2013

    The little Pebbles from the Vapor Canister is the Charcoal pebbles form the Vapor Canister.

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Posted on Jan 02, 2017

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leetamara
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SOURCE: check engine light came on Autozone said needed EVAP purge solenoid?

The problem is, Autozone doesn't use a scanner. They use a scan tool otherwise known as a code reader. I suggest get another opinion at a shop with an actual scanner. They would be more helpful to you. Don't just throw parts at it.

Posted on Jun 11, 2008

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  • 1 Answer

SOURCE: check engine light comes on with repeated fixes

I have seen the rubber o ring on the gas cap leak or have dirt under it. Newer chevy pickups are know for this. causes code 402 normally. check your blower motor resistor on the heater box this can cause the fan to run all the time.

Posted on Feb 16, 2009

  • 1 Answer

SOURCE: my service engine light came on..i went to

I just got home with the same issue. i changed my gas cap going cheap frst but I think the Purge is under the intake cover.

Posted on Mar 14, 2010

  • 22 Answers

SOURCE: Where is my canister purge

Should be undeer car back by the fuel tank, has many hoses going to it and maybe a black plastic cover over it that has a couple of screws in it and looks like a box with a filter in it.....

Posted on Oct 03, 2010

  • 518 Answers

SOURCE: 97 oldsmobile sihouette error code p0400. Was told

Code p0400 is egr flow malfunction. Look for bad or broken vacuum line to egr valve or cracked intake manifold under egr valve or egr valve needs to be replaced. When it is replaced be sure to clean carbon build up on passageway that it sits on in intake manifold..

Posted on Dec 06, 2010

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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 the vapor canister purge valve located on a 96 Cadillac deville Northstar


If your purge valve/solenoid is failing, chances are you will need a new EVAP Carbon Canister as well. As the canister gets old the charcoal (carbon) starts to break down and bits gets sucked and stuck in the valve when the gases are purged from the canister on start up and acceleration. If you take the solenoid off and tap it on the ground you will probably see tiny bits of carbon fall out. This is a sure sign that you need a new canister ...Just replacing the solenoid valve won't help as it will only get clogged again by these bits of carbon. GM located most canisters in the rear wheel well under the wheel well lining. Not too sure of your model but check a Manuel. You must also blow out the line before connecting it to the new canister as bits of carbon can be still in the line and contaminate the new purge valve.

Mar 27, 2015 | Cadillac Cars & Trucks

1 Answer

Po441 2002 Hyundai, engine hard starting after fill up


Most likely is a bad EVAP purge valve. But check below list.
This indicates that a part of the EVAP control system is no longer functioning correctly. The EVAP system consists of many parts, including (but not limited to) the gas cap, fuel lines, carbon canister, purge valve, and other hoses. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle'sicon1.png 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.

EVAP emission canister purge is controlled 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) P0441 is set.
FB.init("dd7d9e9681341cde77587bc6a2029f6f"); OBD-Codes.com on Facebook Symptoms

Likely, no symptoms will be discernible to the driver, other than the illuminated Check Engine Light.
Causes

A code P0441 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
Possible Solutions

With a P0441 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:

  • Replace Leak Detection Pump / LDP
  • Repair damaged EVAP lines or canister
  • Repair open or short in voltage feed circuit to Purge Solenoid
  • Repair open in PCM purge command circuit
  • Replace purge Solenoid
  • Replace vacuum switch
  • Repair restriction in Evap line or canister or solenoid
  • Repair resistance in purge connector
  • Replace PCM

Oct 24, 2012 | Hyundai Elantra Cars & Trucks

1 Answer

2000 toyota camry 2.2L obd code p0441


Hi,

P0441: Evaporative Emission Control System - Incorrect Purge Flow

This indicates that a part of the EVAP control system is no longer fuctioning correctly. The EVAP system consists of many parts, including (but not limited to) the gas cap, fuel lines, carbon canister, purge valve, and other hoses.

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.

Possible causes:

  • 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

Possible solutions:

  • Replace Leak Detection Pump / LDP (if applicable to your vehicle)
  • Repair damaged EVAP lines or canister
  • Repair open or short in voltage feed circuit to Purge Solenoid
  • Repair open in PCM purge command circuit
  • Replace purge Solenoid
  • Replace vacuum switch
  • Repair restriction in Evap line or canister or soleniod
  • Repair resistance in purge connector

  • Check ALL the above until you correct the issue. NEVER replace PCM, unless you prove the PCM to be faulty (as a last resort).

    Cheers,

    Jun 08, 2011 | 2000 Toyota Camry

    3 Answers

    What is evaporation control system malfuction mean? The code is P0440


    Hi, the computer has sensed through the fuel tank pressure sensor that the vapor cannister is not evacuating properly. I have pasted details on the EVAP system below. Check the purge valve on top of the engine as shown below (#1 in picture). Make sure the electrical connector is on the valve, that the wires are not damaged, and check the hose for kinks. If all looks good, I recommend you replace the valve. A new valve is $23 at autozone. Please let me know if you have more questions and thanks for using FixYa.

    jturcotte_1020.gifjturcotte_260.jpg
    Description & Operation
    EVAP Canister
    The canister is filled with carbon pellets used to absorb and store fuel vapors. Fuel vapor is stored in the canister until the control module determines that the vapor can be consumed in the normal combustion process.
    EVAP Control System
    The evaporative emission (EVAP) control system limits fuel vapors from escaping into the atmosphere. Fuel tank vapors are allowed to move from the fuel tank, due to pressure in the tank, through the vapor pipe, into the EVAP canister. Carbon in the canister absorbs and stores the fuel vapors. Excess pressure is vented through the vent line and EVAP vent solenoid to atmosphere.
    The EVAP canister stores the fuel vapors until the engine is able to use them. At an appropriate time, the control module will command the EVAP purge solenoid ON, open, allowing engine vacuum to be applied to the EVAP canister. With the EVAP vent solenoid OFF, open, fresh air will be drawn through the solenoid and vent line to the EVAP canister. Fresh air is drawn through the canister, pulling fuel vapors from the carbon.
    The air/fuel vapor mixture continues through the EVAP purge pipe and EVAP purge solenoid into the intake manifold to be consumed during normal combustion. The control module uses several tests to determine if the EVAP system is leaking.
    The EVAP system consists of the following components:
    EVAP Purge Solenoid
    The EVAP purge solenoid controls the flow of vapors from the EVAP system to the intake manifold. This normally closed solenoid is pulse width modulated (PWM) by the control module to precisely control the flow of fuel vapor to the engine. The solenoid will also be opened during some portions of the EVAP testing, allowing engine vacuum to enter the EVAP system.
    EVAP Service Port
    The EVAP service port is located in the EVAP purge pipe between the EVAP purge solenoid and the EVAP canister. The service port is identified by a green colored cap.
    EVAP Vent Solenoid
    The EVAP vent solenoid controls fresh airflow into the EVAP canister. The solenoid is normally open. The control module will command the solenoid closed during some EVAP tests, allowing the system to be tested for leaks.
    Fuel Tank Pressure Sensor
    The FTP sensor measures the difference between the pressure or vacuum in the fuel tank and outside air pressure. The control module provides a 5-volt reference and a ground to the FTP sensor. The FTP sensor provides a signal voltage back to the control module that can vary between 0.1-4.9 volts. As FTP increases, FTP sensor voltage decreases, high pressure = low voltage. As FTP decreases, FTP voltage increases, low pressure or vacuum = high voltage.

    Feb 10, 2011 | 2002 Chevrolet TrailBlazer

    2 Answers

    P1444 Flujo de purga del circuito de entrada en q parte se encuentra localizada o localizado el senso r o valvula.nissan patfinder 98 motor 3.3


    I don't know any Spanish but here is the codes definition.

    P1444 - Purge Flow Sensor Circuit Low Input

    The 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 ECM. The longer the ON pulse, the greater the amount of fuel vapor that will flow through the valve.

    Causes:
  • EVAP control system pressure sensor
  • EVAP canister purge volume control solenoid valve (The valve is stuck open.)
  • EVAP canister vent control valve
  • EVAP canister
  • Hoses (Hoses are connected incorrectly or clogged.)
  • Feb 02, 2011 | 1998 Nissan Pathfinder

    2 Answers

    Ford escort wagon 1997 code p1443 displayed. what does this indicate & where is the cannister? thank you.


    P1443 - EVAP Control System / Vacuum System Purge Control Solenoid Or Purge Control Valve Fault. A fuel tank pressure change greater than minus (-) 7 inches of water in 30 seconds occurred with a purge (fuel vapor) flow at less than 0.02 pounds per minute.

    Possible Causes:
  • Blocked fuel vapor hose between the EVAP canister purge valve and the FTP sensor.
  • Blocked fuel vapor hose between the EVAP canister purge valve and the engine intake manifold.
  • Blocked vacuum hose between the EVAP canister purge valve solenoid and the engine intake manifold.
  • EVAP canister purge valve stuck closed (mechanically).

  • Possible Solution:
    Check for blockages between the fuel tank, the EVAP canister purge valve, and the engine intake manifold. Check for obstructions in the EVAP canister purge valve diaphragm and ports.

    The canister is on the passengers side near the firewall if I recall correctly.

    Jan 18, 2011 | Ford Escort Cars & Trucks

    1 Answer

    1996 saab 900s p0441 evaporative emission system incorrect purge flow


    This indicates that a part of the EVAP control system is no longer fuctioning correctly. The EVAP system consists of many parts, including (but not limited to) the gas cap, fuel lines, carbon canister, purge valve, and other hoses. 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.

    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) P0441 is set.

    Causes: A code P0441 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

    Possible Solutions: With a P0441 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:
    * Common Chrysler fix - Replace Leak Detection Pump / LDP
    * Repair damaged EVAP lines or canister
    * Repair open or short in voltage feed circuit to Purge Solenoid
    * Repair open in PCM purge command circuit
    * Replace purge Solenoid
    * Replace vacuum switch
    * Repair restriction in Evap line or canister or soleniod
    * Repair resistance in purge connector
    * Replace PCM

    Test it and tel us news.

    Jan 11, 2011 | 1996 Saab 900

    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

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