Name THAT PART!
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Junior User
Joined: Jul 2009
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From: Utah
Name THAT PART!
So I've got a part that needs to be replaced... Not sure what it is or what it does. It sits right next to the battery and it looks like battery acid has dripped on it over the years and has eaten away at the plastic. It hooks to a vacuum line and looks like it might have a filter inside of it. I'm not 100% sure about it but I'm hoping ya'll can help.
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Senior User
Joined: Nov 2008
Posts: 139
Likes: 0
From: okc,oklahoma
that is the carbon filter or charcoal don't remember what everyone calls it. it captures fuel vapors and then puts them through the TB (i'm making a guess on that since it connects to the throttle body). if i remember right you can get one a oreillys for $60 or so.
Fleet Mechanic
Joined: Mar 2005
Posts: 1,603
Likes: 1
From: St Louis
That is your charcoal canister for the gas tank vapors. It will have the gas tank vent line as well as a hose that goes to the throttle body port with a valve between the port and canister. The ECU opens the valve upon deceleration to combust the vapors trapped in the canister charcoal that are released when vacuum is applied to the charcoal. Unless it is cracked or falling apart, there isnt a need to replace it.
Fleet Mechanic
Joined: Mar 2005
Posts: 1,603
Likes: 1
From: St Louis
It really depends on the plastic and acid involved. Sulfuric acid, which is the acid used in batteries, can degrade some plastics. Not all plastics are the same, if they were all plastics would be recycled the same. So because the plastic lead-acid battery on your truck isnt degrading doesnt mean the plastic container of the Charcoal canister wont if battery acid has dripped on it. Only way to know for sure is to put some battery acid on the charcoal canister to see, though it may be really slow.
Posting Guru
Joined: Jul 2009
Posts: 1,069
Likes: 1
From: Toledo, Ohio
I dont really mean to steal your thread but the charcoal canister on my truck is completely open and does not run into the manifold like its supposed to. Is that bad? Its basically just sitting there in its space.. end of story. Im having performance trouble with my truck so I figure id ask.
Post Fiend
Joined: Nov 2008
Posts: 23,849
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From: McKenzie River
I dont really mean to steal your thread but the charcoal canister on my truck is completely open and does not run into the manifold like its supposed to. Is that bad? Its basically just sitting there in its space.. end of story. Im having performance trouble with my truck so I figure id ask.
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Junior User
Joined: Jul 2009
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From: Utah
I'm not sure if it's the acid that caused the damage. it was mainly an assumption it looks like an original part which makes it 22 years old so it could be battery acid, hot then cold air and just a general diteration. Thanks for all the input and no problem on hyjacking my thread it's cool. I think I'm going to try and find and old one. A new one runs any where from 60- 150 bucks...
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Fleet Mechanic
Joined: Mar 2005
Posts: 1,603
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From: St Louis
Performance-wise it isnt really needed, it is just an emission part to reduce the truck's overall hydrocarbon emission. Though if it isnt connected you need to determine if the hosing for it is at as it can cause a vacuum leak into the manifold and lead to high idle condition.
Posting Guru
Joined: Jul 2009
Posts: 1,069
Likes: 1
From: Toledo, Ohio
Well I plugged all the open vacuum lines off. Ford did an engine swap and botched it. There is a purge valve or something where the charcoal canister goes to the purge valve and that goes to the manifold.. Thats how it is on my friends '96 anyhow. Same engine and all. But, if its just emissions theres no problem cause its blocked off anyhow. Ill still fix it though.
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Junior User
Joined: Jul 2009
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From: Utah
So if I was to reroute it to where the vapors just run into the intake instead of it running to the canister then to the intake would it make a diffrence. I just passed my emmis. test and if i could get rid of it that would be nice. Does it do anything improve mpg or anything else?
Fleet Mechanic
Joined: Mar 2005
Posts: 1,603
Likes: 1
From: St Louis
So if I was to reroute it to where the vapors just run into the intake instead of it running to the canister then to the intake would it make a diffrence. I just passed my emmis. test and if i could get rid of it that would be nice. Does it do anything improve mpg or anything else?
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