Air Pressure at oil filler cap

grcauto

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#17
Remove the dip stick with the oil cap off. You now have a fully open PCV system. Air can get in from top and bottom. Are you getting pressure out of both? Where does it have to be coming from?
 
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#19
With engine off, connect a vacuum cleaner (like a shop vac) to the intake of the TB and see if the paper over the oil fill port now gets sucked in.

I did the above shop vac test from the TB and had Zero 0 vacuum at the oil filler port. Rag was tucked around shop vac hose inside TB (gently) , and crank case vent hose hole was taped over. Paper had no movement over oil fill port.
 
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#20
That test result would seem to indicate that the pcv system is plugged, and not letting intake "suck on the crankcase" as it should.
 

billr

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#21
Did you hold the throttle wide-open while doing this? I suppose I should have also asked you to seal off the tail-pipe too. If one cylinder was in the "overlap" period between exhaust valve closing and intake valve opening the vacuum may have been diminished from air coming back in through the exhaust. I think most shop vacs flow enough to overwhelm that flow, but I sure can't be sure about yours.

Assuming you did use WOT and sealing the tail-pipe gives no joy, next disconnect the PCV hose at the intake manifold and verify there is some detectable vacuum there using the shop vac. If so, then re-attach the hose to the manifold and check at the other end of the hose. OK there? then re-install the PCV valve to the hose and test at the end of the PCV valve that connects to the crankcase. It's just like electrical trouble-shooting, you keep moving the "meter" along the circuit until you find where the motive force (vacuum in this case instead of voltage) goes away.
 
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#22
TO billr, I did test WOT, but tail pipe unsealed. You may not be aware that the PCV Valve and hose connections are all between the intake and the block. The intake has to be removed to test/change the PCV system. I have changed the PCV Valve and vent hose twice, the rubber vent hose will collapse and/or tear. Or of course the PCV Valve may be stuck. It is many hour job for me to do it in the garage, because there is barley enough room for tools or hands, See attachment please. oversize.png
 
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#23
Hey guys sorry I have not posted for a while, but my wife had her second round of breast cancer, the first time was over 20 years ago. This time she had major surgery during which they found a second stage two cancer. She is home and doing well and cancer free.
Back to the Escape. I did a compression test today. Results are 210, 215, 220, 220 I checked the readings from July 2013 and they are nearly identical to todays readings. I have not done the PCV test yet, I hope to have time today and will post back.
 

billr

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#24
"No oil bowing out. No noticeable engine problems driving."

That was in your first post. Are there any codes set? Are you having issues with passing emissions testing? If "no" to both of those, why not just ignore what this and get on with life?
 
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#26
Well guys, no codes set.
Florida has no emission testing. If it runs and doesn't have too much oil smoke or gas pumping out the tailpipe you drive it.
You ask: You may be hunting a ghost. Or is that haunting? Not sure, I think it is called OCD. I wont loose sleep over it but I don't like it when I don't understand something. I always do appreciate the time you all take to read and answer my post. I always learn from every thread
 
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#27
Well guys, no codes set.
Florida has no emission testing. If it runs and doesn't have too much oil smoke or gas pumping out the tailpipe you drive it.
You ask: You may be hunting a ghost. Or is that haunting? Not sure, I think it is called OCD. I wont loose sleep over it but I don't like it when I don't understand something. I always do appreciate the time you all take to read and answer my post. I always learn from every thread
I understand the OCD all to well. After many years in this business I still have a bit that hangs on. It does get better.
 

nickb2

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#28
Florida has no emission testing. If it runs and doesn't have too much oil smoke or gas pumping out the tailpipe you drive it.
Why do you think so many quebekers like florida. We feel very at home there. Aside from the many storms you get down there you have to need a second alphabet to name them all after.

Sorry to hear about your wife. But breast cancer is one of the most treatable cancers. So I am optimistic that in this day and age she will not die from that like back in the 60's or 70's/ Science has come a long way.
 

nickb2

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#29
Basically, if that PCV system is collapsing every 4 months, that is not normal, you should maybe looking elsewhere.

But with comp readings as you posted, ignore my previous reply of that engine is toast. But it will be toast soon if you don't address the blow by and vacuum collapse of the PCV system.
Not sure, I think it is called OCD. I wont loose sleep over it but I don't like it when I don't understand something.

Maybe this will help. I HIGHLY suggest doing a engine oil flush with a known good product. After reading this article that has some quite alarming images (no it's not porn). http://www.motorweek.org/features/goss_garage/clearing_up_pcv_valve_problems
 
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#30
nickb2, I will be reading your link this morning, Thank You, but please note I believe you mis-read my earlier post of Oct. 8, 2018. I stated in that post that the PCV hose was collapsing every 4 to 5 years not months as you thought, Thanks for your time and expertise as always.