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2005 Chevrolet. malibu obd2 scanner. detected gross leak and no flow what does that mean on emission

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

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Posted on Jan 02, 2017

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SOURCE: My taurus failed due to code p0442 ecap emiss ctl sys leak detected (small leak)

    Continuous Memory Diagnostic Trouble Code (DTC) P0442 indicates that a fuel vapor leak has been detected [as small as 0.10 cm (0.04 inch)] in the Evaporative Emission (EVAP) system.
    Note: Prior to performing the following diagnosis inspect the Canister Vent Solenoid (CV) for contamination. A situation may exist where contamination holds open the Canister Vent (CV) solenoid enough to set DTC P0442 and also plugs the port to atmosphere enough to keep system from being vented quickly.
    • After market parts and accessories nonconforming to the EVAP system specifications.
    • Damaged, cross threaded or loosely installed fuel filler cap.
    • Small holes or cuts in fuel vapor hoses/tubes (EVAP canister tube, EVAP canister outlet tube or EVAP return tube) in the EVAP system.
    • Loose fuel vapor hose/tube connections to EVAP system components.
    • EVAP system component [EVAP canister purge valve, fuel tank pressure (FTP) sensor, canister vent (CV) solenoid, fuel vapor control valve tube assembly or fuel vapor vent valve assembly] seals leaking.
    • CV solenoid partially open when commanded closed.
    • EVAP canister leaking.
  • Check for presence of fuel filler cap.
  • Verify that the CV solenoid is properly seated on the EVAP canister (if possible).
  • Visually inspect for cut or loose connections to fuel vapor hoses/tubes in following locations:
    • EVAP canister to EVAP canister purge valve.
    • EVAP canister to fuel vapor vent valve assembly.
    • fuel vapor control valve tube assembly to fuel tank (if applicable).

Posted on Jul 26, 2008

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SOURCE: Evaporative Emission Control System Gross Leak

Have a shop with a smoke machine,smoke test it, and repair the EVAP Leak

Posted on Nov 07, 2010

  • 593 Answers

SOURCE: Engine running rough at

First, make sure the gas cap is on tight(turn till it clicks) next, check for broken or disconnected
vacum lines around the top of the engine and intake manifold area. also check the vacum lines
to the purge canister and make sure there is no blockage in the lines. If the canister is bad the
charcoal filter material can get sucked into vac. lines and cause the no flow problem. Also check
the elec. connections for the purge valve(in vac.line from can. to intake manifold) and the vent
solenoid at the canister. Hope this helps.

Posted on Nov 19, 2010

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I HAVE 2005 CHEVY EQUONIX CHECK ENGINE LIGHT ON HAS CODE-PO455 & PO496 (HELP)


P0455- Evap Emission Ctrl Sys Gross Leak Detected
P0496 Evaporative Emission Sys High Purge Flow
This is the 2 codes you requested and they say you have a leak in the emission sys.

Apr 19, 2017 | Cars & Trucks

1 Answer

.2005 Silverado 6,0 codes po307,po332,po455,po2761 changed plugs and wires. need help .suggestions pleaSe


P0307: Cylinder 7 Misfire Detected
http://www.autocodes.com/p0307_chevrolet.html

P0332: Knock Sensor 2 Circuit
http://www.autocodes.com/p0332_chevrolet.html

P0455: Evaporative Emission Control System Leak Detected Gross Leak
http://www.autocodes.com/p0455_chevrolet.html

P2761: Torque Converter Clutch Pressure Control Solenoid Valve Circuit
http://www.autocodes.com/p2761_chevrolet.html

Oct 28, 2016 | 2005 Chevrolet Silverado

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How to fix code po455 on 2005 cobalt


I researched this and found the following information. Hope it helps: P0455 means a gross leak detected in the Evaporative Emissions System. Some call this a "gas cap" code, because the most common cause a loose or failed gas cap. But it could be caused by any vapor leak in the fuel tank, filler neck, or anywhere else in the vapor management system. If it isn't a gas cap, you will need tol take it someplace where they have a smoke machine that can find the leak using smoke.

May 09, 2014 | 2005 Chevrolet Cobalt

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PO455 Mazda 2007 Gross Leak / no flow


The P0455 means " Evaporative Emission System Leak Detected (large leak). You can try to clear the fault code with obd2 code scanner.

Jun 20, 2012 | 2007 Mazda 3

3 Answers

What is code PO496 and PO455 for a 2007 Pontiac Grand Prix mean


P0496 is not alisted code.
P0455 - Evaporative Emission Control System Leak Detected Gross Leak (fuel vapors)
Symptoms - Engine Light ON (or Service Engine Soon Warning Light)
- Possible a noticeable fuel odor caused by the release of fuel vapors Possible causes - Missing or loose fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- EVAP canister or fuel tank leaks
- EVAP system hose leaking
- Fuel tank leaking

Jan 24, 2012 | 2007 Pontiac Grand Prix GXP Sedan

1 Answer

Diagnostic codes PO442, PO305 and PO455 comes up on the computer. What do these codes mean?


P0305....Cylinder 5 Misfire Detected


P0442....Evaporative Emission Control System Leak Detected (small leak)


P0455....Evaporative Emission Control System Leak Detected (gross leak)

Feb 11, 2011 | 2001 Dodge Caravan

2 Answers

Codes 441, 446, 455 on a 2005 Camery


P0441 Evaporative Emission Control System Incorrect Purge Flow
P0446 Evaporative Emission Control System Vent Control Circuit Malfunction
P0455 Evaporative Emission Control System Leak Detected (Gross Leak)
http://www.toyotanation.com/forum/showthread.php?t=128923

Jun 04, 2009 | 2004 Lexus LS 430

3 Answers

I have a 2005 Chevy Malibu. The check engine


"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."
Hope that helps..

Mar 25, 2009 | 2005 Chevrolet Malibu

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