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P0455 CODE Large Leak

I recently had a syervice engine light come on. Took to Auto Zone got it checked and it was a PO455CODE changed my gas cap and now the light is back on. What is most likely the problem?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 31 Answers

SOURCE: check engine light.

you have a vaccum leak.check for cracked hoses

Posted on Jul 22, 2008

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alicantecoli
  • 22326 Answers

SOURCE: My service engine light came on again, one week

check the rubber pipes somewhere one or more is perished and sucking in air

Posted on Nov 21, 2010

jturcotte
  • 8836 Answers

SOURCE: I HAVE A 1999 FORD

Hi, the leak is probably in your evap system. Check the cannister and hoses under the car. Repair as necessary. Also check the purge valve under the hood. Take the hoses off and see if you can blow thru the valve. If you can, it's stuck open. See if it's jammed, or clean it out with carb cleaner to see if it will close. If it will not close, replace it. Please let me know if you have any questions, and thanks for using FixYa.

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Posted on Apr 17, 2011

XKarDoc
  • 458 Answers

SOURCE: 2006 Ford Fusion 2.3L I4

The check engine light won't go out unless you (1) clear the code with a tester or (2) give the computer a chance to determine the problem is no longer there. It has to go thru several test cycles detecting no problem before the computer will turn the light off. You could also have another problem causing an evaporative emission leak (like a vent hose for instance).

Posted on Jun 06, 2011

  • 2006 Answers

SOURCE: 2006 Ford Fusion 2.3L I4 Engine Check engine light

Common Problems That Trigger the P0455 Code

  • Defective or damaged fuel cap
  • Distorted or damaged Fuel Tank Filler Neck
  • Small tear or puncture in the Evaporative system hose(s) and/or Carbon Canister
  • Defective Fuel Tank Sending Unit gasket or seal
  • Small split in a seam of the Carbon Canister
  • Defective Evaporative Vent Valve and/or Evaporative Purge Valve
  • Defective or damaged Fuel Tank
  • Defective Fuel Tank Pressure Sensor
  • Defective Leak Detection Pump
  • Slightly loose and/or worn clamps or hardened O-rings anywhere in the EVAP system
Common Misdiagnoses
  • Fuel cap
  • Evaporative Purge Valve
  • Evaporative Vent Valve

This is a link to a Ford Motor Company PDF file that explains this fault in great detail and is worth reading and studying.
.
http://www.motorcraftservice.com/vdirs/diagnostics/pdf/OBDSM601.pdf

Posted on Jun 06, 2011

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1 Answer

Code p0455 on envoy 2004


large evap leak --check gas cap that it is on --look under truck at rear of fuel tank by spare tire and check the evap canister and hoses the following link will assist you
https://www.obd-codes.com/p0455 How to Fix Check Engine Light P0455 Emissions Purge Valve Replacement How to Fix Check Engine Light P0455 Emissions Purge Valve Replacement

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2002 Hyundai Elantra Check Engine Light with OBD code P0455.


the error was resolved in the link below, please check the last post of Sith.

http://www.hyundai-forums.com/t28310-1997-elantra-code-p0455-help.htm

hope this will help you resolve th issue you have too.

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What is code P0455?


emissions control leak detected (large leak) would start with gas cap

Jun 04, 2016 | 2009 Ford Escape

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I have a 2001 Kia Rio..my check engine light came on so I took it to Auto Zone and they gave me a code that says P0455..something to do with emissions. I did everything they told me to do and then...


That code means that there is a big leak in the evaporative emissions control system. What did you attempt to do to repair this? If you replaced the fuel cap, what brand did you use? KIA has spring loaded caps that are known to fail pretty easily.

Mar 17, 2014 | Kia Rio Cars & Trucks

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Clearing code P0455 2005 Chevy Malibu from loose gas cap


all you should haft to do is unhook the battery I usually unhook it for about 30 seconds that should erase all the codes the only other way I know of is to erase them with a code reader.

May 14, 2011 | 2005 Chevrolet Malibu

2 Answers

Check engine light came on went to auto zone said it was gas cap. Bought new gas cap. reset engine light. two days later check engine light is back on. what next?


Hi, if the code was P0455, there are other possible reasons. The computer fuel tank pressure sensor has detected a leak which could also be in the vapor canister, or the hose from the canister to the purge valve, or the purge valve itself may be leaking. Please inspect the system for these leaks. I may be able to provide some pics of these parts if you tell me your model, year, and engine info.

Evaporative Emission Control System Leak Detected (no purge flow or large leak)
What does that mean? This indicates a fuel vapor leak or lack of purge flow in the EVAP control system. It means a large leak has been detected. 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.
Symptoms You likely won't notice any drivability problems.
Causes 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
Possible Solutions 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

May 14, 2011 | Chevrolet 2500 Cars & Trucks

3 Answers

Engine light came on code is p0455 evap large leak....gas cap was loose ...is this the problem


Here's a little more info on the situation

http://www.obd-codes.com/p0455

Mar 01, 2010 | 2006 GMC Sierra

3 Answers

What is the error code p0455 on Chrysler Town and Country?


P0455....Evaporative Emission Control System Leak Detected (gross leak
the first thin to check is your gas cap

Nov 14, 2009 | 2003 Chrysler Town & Country

1 Answer

2006 Saturn Relay Check Engine Light


PO455 is a large evaporative fuel leak. A bad fuel cap is ONE of the things that COULD be the problem. Fuel system cleaning only lightened your wallet. Reading your post is confusing. Did all this start AFTER the Valvoline Wallet Flushing? If so , they left something loose or disconnected. I would find a qualified repair shop to fix the problem, and if it has anything to do with what Valvoline did, make them pay the bill.

Nov 12, 2009 | 2006 Saturn Relay

1 Answer

Check engine light is on


P0455 - Evaporative Emission Control System Leak Detected (no purge flow or large leak)

What does that mean? This indicates a fuel vapor leak or lack of purge flow in the EVAP control system. It means a large leak has been detected. 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.
Symptoms You likely won't notice any drivability problems.
Causes 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
Possible Solutions 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

Sep 17, 2008 | 2002 Suzuki XL-7

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