po455 code evap
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Joined: Feb 2005
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From: moore
po455 code evap
hi new here first time to post got this code when i scanned the truck checked the hoses and elbows all around the canister didnt hear any leaks or see any wanting to know if there is a better way to check for the leaks other than just listening and also can the canister itself just quit working can this also trip a po171 code thanks
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Joined: Jan 2004
Posts: 19,760
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From: St Louis
P0455 Gross Evap Leak most commonly occurs because the gas cap is not installed correctly.
The P0171 is possibly related if there is a major leak in the purge line to the CV solenoid.
A fault in that section could explain both codes.
Steve
The P0171 is possibly related if there is a major leak in the purge line to the CV solenoid.
A fault in that section could explain both codes.
Steve
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Joined: Aug 2002
Posts: 12,679
Likes: 15
From: BC, Canada
That could cause it if the outer lip of the filler is chipped where the cap seals.
A more common problem for a P0455 is a bad Canister Vent Solenoid or the wiring to it.
If you do a search in here I think you'll find a few posts about it.
A more common problem for a P0455 is a bad Canister Vent Solenoid or the wiring to it.
If you do a search in here I think you'll find a few posts about it.
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