oil prob
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Junior User
Joined: Dec 2004
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From: w.v.
oil prob
i was changing my air filter an hr ago and notices alot of oil in my air box what does that mean i dount think this is a good sign its an 89 f150 -w- 302
Last edited by fordfanwv; Dec 31, 2006 at 09:38 PM.
Postmaster
Joined: Jun 2005
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How can oil get into the air box from the pcv?? This is a good one...
In the box under the element is another little filter that hooks to the valve cover wait wait...
EFI or Crab..........????
and how many miles on it???
In the box under the element is another little filter that hooks to the valve cover wait wait...
EFI or Crab..........????
and how many miles on it???
Elder User
Joined: Jul 2006
Posts: 688
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From: right here in michigan
Originally Posted by HemiEater
How can oil get into the air box from the pcv?? This is a good one...
In the box under the element is another little filter that hooks to the valve cover wait wait...
EFI or Crab..........????
and how many miles on it???
In the box under the element is another little filter that hooks to the valve cover wait wait...
EFI or Crab..........????
and how many miles on it???
Postmaster
Joined: Jun 2005
Posts: 2,656
Likes: 1
The pcv valve gets it vacuume from the intake..before the air box.
if the thing has a bunch of miles on it the one thing that comes to mind is blow by. if the pcv system can't keep up with the block pressure it will find the weakest place to exit, if the engine has a breather that is feed into the air box from the valve cover it will some times blow oil in the box.
Just under the air filter in the air box there should be a little filter that never gets changed. thats the one that goes to the side of the block or to the valve cover. It's a vent.....and when you get heavy blow by it will blow off the extra pressure from the block into the air box...
Hope I got that right.........
if the thing has a bunch of miles on it the one thing that comes to mind is blow by. if the pcv system can't keep up with the block pressure it will find the weakest place to exit, if the engine has a breather that is feed into the air box from the valve cover it will some times blow oil in the box.
Just under the air filter in the air box there should be a little filter that never gets changed. thats the one that goes to the side of the block or to the valve cover. It's a vent.....and when you get heavy blow by it will blow off the extra pressure from the block into the air box...
Hope I got that right.........
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Posting Guru
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From: Kiefer, Northeastern Okla
Yessir. That's why I mentioned the PCV. Had the same problem. BTW, just because it rattles, doesn't mean it's good. They're cheap, give it a try.
Pete
Pete
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