I-6 pcv vallve question
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Elder User
Joined: Jan 2008
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From: Gatineau, Quebec
I-6 pcv vallve question
I was doing some work under the hood today and went to look at pcv valve. There apear to be two connections for hoses and only the bottom nipple has a hose connected to it.
Can someone tell me if it is the right pcv valve for the inline 6 cylinder and if so, what should be connected to the top nipple and what should that connect to.
I am getting oil in the throttle body and heard that a non-functioning pcv valve can cause this. But had bad oil leak from push rod cover gasket about a month ago and wondering if maybe it is just remnants from that. I cleaned the Idle air valve today but didn't have time to pull TB....will clean that in the next couple of days but would really like to know the source of the oil.
Since I'm at it...can someone tell me the purpose of the other hose from the air filter box to front of valve cover.
Thanks for any help
Dave
Can someone tell me if it is the right pcv valve for the inline 6 cylinder and if so, what should be connected to the top nipple and what should that connect to.
I am getting oil in the throttle body and heard that a non-functioning pcv valve can cause this. But had bad oil leak from push rod cover gasket about a month ago and wondering if maybe it is just remnants from that. I cleaned the Idle air valve today but didn't have time to pull TB....will clean that in the next couple of days but would really like to know the source of the oil.
Since I'm at it...can someone tell me the purpose of the other hose from the air filter box to front of valve cover.
Thanks for any help
Dave
Lead Driver
Joined: Nov 2002
Posts: 9,558
Likes: 45
From: Concord, NC
It sounds like you have a "one-size-fits-all" PCV valve from the parts store. I suggest, as has been recommended to me, to go to the dealer and get the correct replacement PCV valve that will be specific to your truck. It's not much more expensive, and it may help alleviate the oil burn problem you are having.
The PCV system forms a circuit through the engine, so the hose at the front of the valve cover provides fresh air to the crankcase for the PCV system to function properly. Engine vacuum pulls air through the crankcase -- the front hose supplies clean, filtered air for the PCV system to pull through, capturing blowby and other oil vapors and burning off those vapors during combustion.
The PCV system forms a circuit through the engine, so the hose at the front of the valve cover provides fresh air to the crankcase for the PCV system to function properly. Engine vacuum pulls air through the crankcase -- the front hose supplies clean, filtered air for the PCV system to pull through, capturing blowby and other oil vapors and burning off those vapors during combustion.
