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Threw this code today P0455

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Old May 8, 2007 | 12:13 AM
  #1  
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Big_Blue
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Default Threw this code today P0455

Now what

P0455 (M) Evap Leak Monitor Large Leak Detected A large leak has been detected in the evaporative sysem.
 
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Old May 8, 2007 | 12:19 AM
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Default RE: Threw this code today P0455

Get under the Dak and start following your fuel lines looking for cracks or holes. The most common area for this to happen is in the filler neck so check there first.
 
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Old May 8, 2007 | 12:24 AM
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Default RE: Threw this code today P0455

new gas cap correct...? mine threw that fora cap, well that and i always filled up with gas when the truck was runnin..
 
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Old May 8, 2007 | 12:28 AM
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Mean Green
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Default RE: Threw this code today P0455

Cap is usually a small leak.
 
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Old May 8, 2007 | 12:31 AM
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Default RE: Threw this code today P0455

this is correct, but never know...easy fix if it hasnt been done people dont know that filling whrn running would cause this too..
 
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Old May 8, 2007 | 04:19 AM
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Default RE: Threw this code today P0455

correct me if im wrong but last time i checked, the evaporator was part of the ac system, not the fuel system
 
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Old May 8, 2007 | 02:29 PM
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Default RE: Threw this code today P0455

ORIGINAL: imnothot02

this is correct, but never know...easy fix if it hasnt been done people dont know that filling whrn running would cause this too..

filling up with the truck running could cause alot more then a code what gas station lets you keep the truck running?

but it could be a bad hose to your charcoal canister.
 
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Old May 8, 2007 | 11:57 PM
  #8  
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4x4kota
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Default RE: Threw this code today P0455

I had the same code, my hose by the emissions evap service valve was cracked, so i cut off an inch from the end, reset the computer and was good to go.
 
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Old May 9, 2007 | 01:57 AM
  #9  
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98R/TDak
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Default RE: Threw this code today P0455

would a vacuum line cause that code to appear? either one falling off or cracked?
 
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Old May 9, 2007 | 10:18 PM
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Default RE: Threw this code today P0455

yes..
 
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