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Codes Po455 & P1462

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P0455= Evap. Emission system leaks.

Posted on Jan 06, 2009

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Code po455


Code 455 means there is a large leak in the evap system. The evap system is how the computer vents the gas tank to the vapor canister. The system would need to be pressure tested.

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First thing is to have the gas cap tested, or just replace it.if cap is good the next possible couse would be the evaperative canister located near or around the gas tank. Most likely the gas cap though.

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Codes0441 0442 0455 0456


codes po441 po442 po455 po456. code po441 - EVAP system no flow during purge conditions.code po442 -EVAP system small leak detected conditions. code po455 - EVAP system large leak detected conditions.code po456 - EVAP system very small leak detected. possible causes loose damaged missing fuel cap.fuel tank sensor disconnected or failed. ORING on top fuel sending unit leaking.purge valve vapor line clogged disconnected or purge solenoid failed.vent solenoid not closing or has failed.

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Check engine light came on and the code showed po455


its a evap code could be from a bad gas cap to a cracked vapor line or a bad sensor

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1999 mercury grand marques trouble code PO455


buy a new gas cap and reset the light if that dont work check the fuel filler neck to see if it is rotted if so the replace it and that should take care of that problem

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What can i do po455 code


P0455 CHEVROLET - Evaporative Emission Control System Leak Detected Gross Leak3xicon.jpghttp://engine-codes.com/p0455_chevrolet.htmlForum CodePossible causes- Missing or loose fuel cap
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My car has these codes coming up. What are they? PO141 PO455 PO128 PO300... My car is a 2006 Chevrolet Cobalt


CODE O141 IS AN O2 SENSOR WHICH IS NOT WORKING
CODE P0300 IS A RANDOM MULTIPLE MISFIRE WHICH IS IN RELATION TO THE FIRST CODE
CODE PO455 IS THE EVAP PURGE CONTROL VALVE WHICH IS SHORTED (NOT WORKING)

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There is a pretty good emissions leak somewhere.

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hi !the three codes po353,351 and355 refer to the ignition coil po455 refers to evap emission control leak [LARGE} HOPE THIS HELPS

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