Crankcase pressure and PCV
Intermediate
Joined: Feb 2004
Posts: 35
Likes: 0
From: Rancho Cucamonga CA
Re: Crankcase pressure and PCV (Survivor40th)
They're cheap to replace, so go ahead. Also check the Vacuum-Hose/Tube(s) to make sure they are not leaking too.
You may also need New Valve-Cover Gaskets (over time, they harden-up, shrink and crack.)
Finally, if it's a High-Milage Engine, you may have excessive Blow-By past the Piston-Rings which is Pressurizing your crankcase. In that case, it may be nearly time for a rebuild/overhaul.
You may also need New Valve-Cover Gaskets (over time, they harden-up, shrink and crack.)
Finally, if it's a High-Milage Engine, you may have excessive Blow-By past the Piston-Rings which is Pressurizing your crankcase. In that case, it may be nearly time for a rebuild/overhaul.
Melting Slicks
Joined: Dec 2000
Posts: 2,719
Likes: 60
From: Fremont Oh
Re: Crankcase pressure and PCV (D_C71)
If it rattles when you shake it it should be fine I usually check mine about every two oil changes. Also I know in the LT's (you didnt give you year) the valve cover gaskets are reusable, at least mine are....
If you are seeing seeping through the valve cover gaskets you could pop the tube of the "breather side with the engine running and see how much blow by you are getting... maybe also check for a collapsed or kinked PVC hose...
Just a few thoughts ...
Mo
If you are seeing seeping through the valve cover gaskets you could pop the tube of the "breather side with the engine running and see how much blow by you are getting... maybe also check for a collapsed or kinked PVC hose...
Just a few thoughts ...
Mo
