Cutting oil filtering off from cai

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sullivan

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I was thinking about it recently. Why did dodge design the oil tube to vent off the air intake system? I recently cut off the connection from my CAI to the oil breather tube and added a chrome foam filter. Don't call me stupid but I just feel as now the truck is sucking air in trough the filter now rather then a mix of the filter and this oil breather tube... Also when i cleaned out the CAI that was Installed by the previous owner, it had a lot of miles on it, and upon cleaning found oil in the tube. Oily air isnt as good as a clean flow of air in my opinion.

Thoughts? I will throw a photo up afterwhile.

For reference, this is what I attached: http://www.autozone.com/autozone/ac...-vehicles/_/N-25xh?itemIdentifier=266500_0_0_
 
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Redtruck-VA

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Tyler, a closed emission system is called for by law. Dodge just vented the crank case through the filler tube back to the intake to maintain a closed system. There is a minimum amount of pumped vapors that escape and these vapors are carrying a little oil that you found in your CAI. If there is an excessive amount of oily vapor coming from the crankcase then it is an indication of blowby. Some folks connect a recovery can to the vent which allows the oil suspended in the vapor to collect and drain back to the crank case.
 

mopar6spd

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The oiling system has to breathe and if there isn't a way for it to you'll start to blow out seals... There is a reason Dodge designed it that way.
 

RubberFrog

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The oiling system has to breathe and if there isn't a way for it to you'll start to blow out seals... There is a reason Dodge designed it that way.

yes and no

Back in the day we all put little filters on the valve covers to eliminate crankcase pressure. The ONLY reason they now route it into the intake is for emission. I am not making a statement pro or con for emissions. I'm just stating what it is.
 

KGBIGCOUNTRY

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Which you can bypass the same way ya did back in the day with a small crankcase breather. I still have mine attached to my CAI and has never caused an issue.
 

mopar6spd

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Yeah I misread the post, just as long as there is something allowing the crankcase to breathe- like an oil breather on the valve cover like back in the day..
 

OlDirtyJohn

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I was thinking about it recently. Why did dodge design the oil tube to vent off the air intake system? I recently cut off the connection from my CAI to the oil breather tube and added a chrome foam filter. Don't call me stupid but I just feel as now the truck is sucking air in trough the filter now rather then a mix of the filter and this oil breather tube... Also when i cleaned out the CAI that was Installed by the previous owner, it had a lot of miles on it, and upon cleaning found oil in the tube. Oily air isnt as good as a clean flow of air in my opinion.

Thoughts? I will throw a photo up afterwhile.

For reference, this is what I attached: Spectre/White clamp-on cotton fiber oil breather filter element - May not be legal for use on pollution controlled vehicles (3998) | Breather Filter | AutoZone.com

i did the same exact thing a couple thousand miles ago. with a small red filter just like the one in the link. it has had no negative or positive side effects.....it just looks cool. and for like $5, why not?
 
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sullivan

sullivan

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It has that stupid "may not be legal" thing. Will I fail an inspection with this in texas?

Heres how I have my cai right now:

It's capped off using the clamp that came with the breather filter.
img0521hfj.jpg


img0522gf.jpg


img0523.jpg
 

txbass06

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It has that stupid "may not be legal" thing. Will I fail an inspection with this in texas?

Highly doubt anyone will even notice. Where about in Texas? I've said it here before, I passed state inspection in my old '83 chevy running straight headers lol. As long as the horn and all the lights work, you'll probably pass with no problems
 
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sullivan

sullivan

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Houston, and thanks. Just replaced a out bulb while I was in autozone too. So im good for the inspection now...
 

txbass06

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No problem man. I worked at an oil change joint last summer for a little extra cash and you'd be amazed at some of the junkers that passed lol
 
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sullivan

sullivan

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No problem man. I worked at an oil change joint last summer for a little extra cash and you'd be amazed at some of the junkers that passed lol

Since you have some experience, how much is new inspection sticker and all? Mine expires this month.
 

txbass06

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$14.50 for the inspection if it hasn't changed since I got mine back in October
 

txbass06

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Don't think so. I've never had one ran on anything I've owned and never performed one while I worked there either.

Granted, I'm in northeast Texas, about 5 miles from the AR border but that shouldn't make any difference.
 
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