What is a CCV Mod? - Ford Powerstroke Diesel Forum
6.0L Performance Parts Discussion What has or has not worked for you?

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  #1  
Old 10-19-2008, 03:23 AM
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What is a CCV Mod?

I've noticed this on some signatures and have no idea what it is. I'm still trying to learn.
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Old 10-19-2008, 03:41 AM
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crank case vent (ccv) you vent it to the atmosphere rather than back to the intake. why? you get oil in the intercooler and also if you get to much in there you can have a boot blow off.
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Old 10-19-2008, 04:49 AM
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Ok, help me out here, how does that help your truck?
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Old 10-19-2008, 04:51 AM
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It takes the vapors and crap from the crank case vent and instead of dumping that into your intake it puts it into a system that vents into the earth thus keeping your turbo and everything connected to it clean of oil and stuff.
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Old 10-19-2008, 05:11 AM
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your cank case has presure while running. To keep the presure from blowing out any seals there is a vent on the top of the drivers side valce cover that realeases the presure. The presure coming from that has fine particles of oil that run thru your in take system first the turbo then the intercooler where a lot of it gets traped then to the engine to be burt with the fuel. By doing the ccv mod you are not allowing that oil in youre intake. Check your intake boots there is probably a light oil coating where you get a little bit of blow buy. all that oil comes from youre ccv. In order for the intercooler to work eficiently it should be dry and free of contamination. its only job is to cool the intake charge by running air thru it it can not do its job coated in oil very well so if you have a lot of miles on the truck and the ccv has been hooked up for all of them it might be a good idea to pull apart the intake system and clean with somthing like kerosene or siple green.
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Old 10-19-2008, 05:28 AM
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Thanks guys for the explaination. I got a pretty good idea now what it is. Is there any kind of drawback or problems that come from it?
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Old 10-19-2008, 05:34 AM
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Quote:
Originally Posted by bulldog84 View Post
Thanks guys for the explaination. I got a pretty good idea now what it is. Is there any kind of drawback or problems that come from it?
Don't create a low place in the hose when you route it. Oil will collect in it and cause back pressure. Not good!

Some tap it into their exhaust, but this can cause a lot of back pressure if not done correctly.
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Old 10-19-2008, 05:37 AM
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if you dont vent the tube far enought back you will smell oil because it smoke a bit. that is the only disadvantage to the mod.
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Old 10-19-2008, 08:03 AM
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OK guys i need some clarification. Buddy of mine just pulled apart his intake and intercooler and saw all the oil in it (truck has about 40k on it) I told him how to clean everything out and explained to him what this mod was and that it would be a good idea. I guess he asked one of his engine building buddys and he had advised against this mod saying that it would allow to much pressure to remain in the crankcase. Said it needed the vac from the turbo to work properly.
Any of you guys have further insite into this?
tia
Mike
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Old 10-19-2008, 09:16 AM
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Quote:
Originally Posted by lightninmike View Post
OK guys i need some clarification. Buddy of mine just pulled apart his intake and intercooler and saw all the oil in it (truck has about 40k on it) I told him how to clean everything out and explained to him what this mod was and that it would be a good idea. I guess he asked one of his engine building buddys and he had advised against this mod saying that it would allow to much pressure to remain in the crankcase. Said it needed the vac from the turbo to work properly.
Any of you guys have further insite into this?
tia
Mike
I would like to call BS.
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