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My 2005 implala engine code is reading P0455 - 2005 Chevrolet Impala

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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

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Posted on Jan 02, 2017

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  • 184 Answers

SOURCE: gm dignostic code p0455

A little late but check your gas cap first.

http://www.p0455.com

Posted on May 03, 2009

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  • 9 Answers

SOURCE: Code Scan Reads P0455 Evap. Emissions Leak, Large

large leek is usually the gas cap. just had the same problem

Posted on Jul 16, 2009

  • 262 Answers

SOURCE: Getting codes P0455 and P0449. From what I read,

The vent solenoid valve has been redesigned to correct the problem you are having. I would recommend purchasing the dealer component.
I am not aware of any aftermarket parts suppliers.

Posted on Feb 25, 2010

skychief2001
  • 21873 Answers

SOURCE: How do I resolve diagnostic code P0455 on my 2005 Chevrolet Tahoe?

Here is the definition and possible causes.

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
P0455 CHEVROLET Description This diagnosis detects leaks in the Evaporative Emission System (EVAP) purge line using engine intake manifold vacuum. If pressure does not increase, the Engine Control Module (ECM) will check for leaks in the line between the fuel tank and EVAP canister purge volume control solenoid valve under the following vacuum test condition.


The vacuum cut valve bypass valve is opened to clear the line between the fuel tank and the EVAP canister purge volume control solenoid valve. The EVAP canister vent control valve will then be closed to shut the EVAP purge line off. The EVAP canister purge volume control solenoid valve is opened to depressurize the EVAP purge line using intake manifold vacuum. After this depressurization is implemented, the EVAP canister purge volume control solenoid valve will be closed.
Read more: http://engine-codes.com/p0455_chevrolet.html#ixzz24fVfq0Bx

Posted on Aug 26, 2012

subytech1
  • 244 Answers

SOURCE: engine light code p0455 chev monte carlo

Hello,The problem is that the EVAP system is not able to achieve or maintain vacuum during the diagnostic testThe control module tests the evaporative emission (EVAP) system for a large leak. The control module monitors the fuel tank pressure (FTP) sensor signal to determine the EVAP system vacuum level. When the conditions for running the test are met, the control module commands the EVAP canister purge solenoid valve OPEN and the EVAP canister vent solenoid valve CLOSED . This allows engine vacuum to enter the EVAP system. At a calibrated time, or vacuum level, the control module commands the EVAP canister purge solenoid valve closed, sealing the system, and monitors the FTP sensor input in order to determine the EVAP system vacuum level. If the system is unable to achieve the calibrated vacuum level, or the vacuum level decreases too rapidly, the PCM will set the code you now have.So, you either have a stuck open purge valve, a stuck open vent valve, a false reading fuel tank pressure sensor, or a cracked/broken EVAP line.

Posted on Sep 21, 2012

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1 Answer

Need help trouble shooting 2 codes, P0401 & P0455


Google the codes

Lots to read & study

OBD2 PO401

OBD2 PO455

Think you will a repair shop to smoke the
Evap for the 455

Feb 14, 2013 | 2000 Mercury Mountaineer

1 Answer

How do I resolve diagnostic code P0455 on my 2005 Chevrolet Tahoe?


Here is the definition and possible causes.

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
P0455 CHEVROLET Description This diagnosis detects leaks in the Evaporative Emission System (EVAP) purge line using engine intake manifold vacuum. If pressure does not increase, the Engine Control Module (ECM) will check for leaks in the line between the fuel tank and EVAP canister purge volume control solenoid valve under the following vacuum test condition.


The vacuum cut valve bypass valve is opened to clear the line between the fuel tank and the EVAP canister purge volume control solenoid valve. The EVAP canister vent control valve will then be closed to shut the EVAP purge line off. The EVAP canister purge volume control solenoid valve is opened to depressurize the EVAP purge line using intake manifold vacuum. After this depressurization is implemented, the EVAP canister purge volume control solenoid valve will be closed.
Read more: http://engine-codes.com/p0455_chevrolet.html#ixzz24fVfq0Bx

Aug 26, 2012 | 2005 Chevrolet Tahoe

1 Answer

2001 Hyundai elantra - trouble codes P0442,P0507,P0455 and NO DTC


you can look up these codes on actron.com or google that code

Dec 26, 2011 | 2001 Hyundai Elantra

1 Answer

2005 pontiac sunfire DTC Code P0455, had a similar problem 2 mos ago but DTC Code was P0496? CEL just came on yesterday hadn't been on in 2mos?


Okay ,Reason I ask is some guys get the codes read but dont know what the code is traslating a problem.So do you know what these codes mean?

Mar 07, 2011 | 2005 Pontiac Sunfire

2 Answers

Getting codes P0455 and P0449. From what I read,


The vent solenoid valve has been redesigned to correct the problem you are having. I would recommend purchasing the dealer component.
I am not aware of any aftermarket parts suppliers.

Feb 25, 2010 | 2005 Chevrolet Avalanche

2 Answers

Check engine light is on, the code is p0455, which is for the emission evaporator, what could the possible problem be?


A code p0455 most likely means one or more of the following has happened:
  • A loose or improperly affixed gas cap
  • A non-conforming gas cap (i.e. not factory/original brand)
  • Other leak or damaged piece in EVAP system

With a p0455, the most common repair is to:
  • Remove and reinstall the gas cap, clear the codes, and drive for a day and see if the codes come back.
  • Otherwise, replace the gas cap, and/or
  • Inspect the EVAP system for cuts/holes in tubes/hoses (you may hear a vacuum noise or smell fuel), repair if necessary

Apr 15, 2009 | Lincoln Town Car Cars & Trucks

1 Answer

Gm dignostic code p0455


A little late but check your gas cap first.

http://www.p0455.com

Oct 15, 2008 | 2005 Chevrolet Blazer

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