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Does ECO Tune take care of CCV issues?  RSS feed
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PAMoose87

Joined: 18/01/2012 10:00:03
Messages: 1
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I am new to the Liberty CRD. I actually just bought one and haven't even got to pick it up yet...I have an 04.5 cummins though so I am not completely diesel dumb...

I have been doing some reading here and also on LOSTJeeps and see a lot of talk about the ECO tune, which I will probably get, but also a lot of talk on an EHM mod or CCV mod where you run a hose to the ground to avoid getting oil in your intake. Do the GDE ECO tunes eliminate having to do this or is it still a good idea to do this modificiation for longevity and overall health of motor and mpg?

Thanks, and sorry if this isn't the right place for the question.
GreenDieselEngineering
[Avatar]

Joined: 10/07/2009 07:25:47
Messages: 363
Location: Southeast Michigan
The CCV is a "dumb" system and the engine tune will have no effect on it. The core issue with having the CCV plumbed to the clean air duct is the oil being recirculated through the engine and contaminating the rubber boost hoses. The stock hoses weaken with exposure to oil over time and they will eventually rupture. We opted for installing SAMCO boost hoses that have silicon in them to prevent oil bleed through. With strong hoses the oil harmlessly flows through the engine. With a stock tune the oil will still mix with EGR soot in the intake manifold and cause more sludge buildup. However, with a GDE tune the soot no longer enters the intake manifold and the oil now coming through acts as a detergent to slowly break down the soot currently inthe manifold. Do not expect it to clean the manifold, but at least will will not worsen. Thanks, GDE
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