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#1
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I was thinking of doing a Po-Boy cold air kit for my 4.7 dakota, but there's a rubber hose coming from the airbox. It divides into a T shape with one hose going towards the back of the engine and another going underneath(not sure where, can't see). Can somebody tell me what it's for? Any help is appreciated.
------------------ 2000, 4.7L, auto, 3.55, Reg. Cab, Flowmaster cat-back (more mods to come) |
#2
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That hose is simply the intake breather for the PCV system (Positive Crankcase Ventalation)
Clean air is routed from the intake box into the rear of each of the 2 valve covers. Since the crankecase is sealed, the vacuum created by the PCV valve (On side of oil-fill tube) pulls clean air from this tube to keep the crankcase ventalated. |
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