pcv replacement
Logistics Pro
Joined: Jan 2002
Posts: 4,907
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From: suburban atlanta
Just a comment, but why? I would only replace the PCV if it were gummed up or I was having blow-by problems pressurizing the crankcase forcing oil out all over the place. I have yet to touch mine on my Ranger. [ditto the fuel filter...both of them... I can't find a replacement...] since 1985... built in 1984.
toim
toim
New User
Joined: Oct 2003
Posts: 6
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From: NE Ohio
Doesn't the Haynes manual list this part having to be replaced every 12,000 miles or something like that? If my memory is serving me right, changing every 12,000 miles seems a bit too much. I have yet to change the pcv valve on my truck but after 77,000 miles I'll be changing it out this weekend. I've read that if you take it out and hear it rattle it's still good. However, I'm changing mine for preventative maintenance at the very least.
Logistics Pro
Joined: Jan 2002
Posts: 4,907
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From: suburban atlanta
The PCV on the 3.0 is mounted into the rocker arm cover. Trace the hose back from the intake manifold to where it goes into the cover. There should be a PCV stuck down into a grommet.
I check the PCV by running the engine at idle, and placing my finger over the tube running from the air cleaner to the rocker cover. After a short while, at idle, there should be a slight vacuum pulled in the crankcase. IF you don't have excessive blowby.
Removing it and shaking it is also a good check. A visual inspection can tell you if it is getting gummed up, which would also be a good indicator of how well maintained the engine is.
tom
I check the PCV by running the engine at idle, and placing my finger over the tube running from the air cleaner to the rocker cover. After a short while, at idle, there should be a slight vacuum pulled in the crankcase. IF you don't have excessive blowby.
Removing it and shaking it is also a good check. A visual inspection can tell you if it is getting gummed up, which would also be a good indicator of how well maintained the engine is.
tom
Moderator
Joined: Jan 2004
Posts: 13,851
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From: SW Va
The 3.0L Vulcan PCV valve is located in the top rear of the drivers side valve cover.
My 99 service manual calls for replacement at 120K intervials for V6, V8 & V10 engines & at 60K miles for the 4banger engines.
A shake test will tell if it's gumed, sludged, or carboned up & not working at all, But won't determine if the spring is broken, weak, or if it's worn & not sealing well when it's suppoed to be closed, so replacement of it & inspection of it's rubber hose & gromet valve cover fitting, at least as soon as called out in our vehicles "Scheduled Maintenance" chart is good practice. Many times the connecting rubber hose, or gromet have problems, before the PCV valve itself.
The PCV system can be thought of as a calculated for vacuum leak, so if it's misbehaving, or it's rubber hoses are leaking, it can mess with fuel trim, not to mention not properly purging the crankcase, which sure can lead to gum, varnish, sludge & carbon build up.
So imo, the lowly & inexpensive PCV system, deserves our timely inspection & replacement of parts at least as often as scheduled.
My 99 service manual calls for replacement at 120K intervials for V6, V8 & V10 engines & at 60K miles for the 4banger engines.
A shake test will tell if it's gumed, sludged, or carboned up & not working at all, But won't determine if the spring is broken, weak, or if it's worn & not sealing well when it's suppoed to be closed, so replacement of it & inspection of it's rubber hose & gromet valve cover fitting, at least as soon as called out in our vehicles "Scheduled Maintenance" chart is good practice. Many times the connecting rubber hose, or gromet have problems, before the PCV valve itself.
The PCV system can be thought of as a calculated for vacuum leak, so if it's misbehaving, or it's rubber hoses are leaking, it can mess with fuel trim, not to mention not properly purging the crankcase, which sure can lead to gum, varnish, sludge & carbon build up.
So imo, the lowly & inexpensive PCV system, deserves our timely inspection & replacement of parts at least as often as scheduled.
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From: Smithfield N.C.
On the drivers side look past the brakebooster to the valve cover. there should be a hose from the upper intake running to the valve cover. at the end of that hose is the pcv valve, it should have 2 small coolant hoses running to it. I would recomend replacing the entire hose to the manifold. They are prone to wear and cause massive vacuum leaks. I just picked one up fron Ford for $45.18 part #2l5z*6c324*ca description B8 connector. it comes with a new pcv installed.
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Joined: Aug 2008
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my brother has that engine. at 130k the hose and grommet was so clogged that the passing air busted a hole. it caused a vaccum problem that would was causing the engine speed to surge at idle and sometimes stall. 35 dollars for the whole assembly at the dealer.
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Yougotthehit
1999 - 2003 7.3L Power Stroke Diesel
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Jan 20, 2013 11:53 AM
2003, 2004, 2l5z6c324ca, broken, connector, ford, maintenance, pcv, ranger, removal, repacement, replace, reviews, truck, v10
