I am STILL getting oil in my upper intake....please read. (MS Paint Illustration :) )

BlueOvalStangGT · Jan 3, 2007

Ok, I have been having issues, please observe the illustration below. My car used to have the PCV vacuam line going to vac port numero 2 as illustrated before. I also had a cap on number 3. One day the cap got old i guess, and ripped. This is when I started noticing the problem. Upon it ripping, my car smoked like a beast and I found out it was because oil was dripping from that port. When I pulled the rest of the cap off, a good amount of oil POURED out. Oil had been puddling up in my intake. Now, I have changed the pcv valve, lengthened the hose, and switched to have the pcv valve going to port number 3, and the cap on number 2. Yesterday I changed my oil(with a thicker 10w40), and drove the car maybe 25 minutes total. This morning I pull off that vacuam line from the pcv and already some oil poured out. What the hell is going on and how do i fix it?

95Vert · Jan 3, 2007

This is a 'normal' problem in our mustangs. best thing to do would be to get a catch can, splice the hose and put it in between so it can catch the oil there. I need to do the same.

95cobraguy · Jan 3, 2007

i have this problem also with a home depot oil separator in line. i'm gonna be deleting the pcv altogether and put a breather in the back of the lower intake along with the breather that i'm using in the valve cover. i refuse to have oil in my intake.

95Vert · Jan 3, 2007

95cobraguy said:
i have this problem also with a home depot oil separator in line. i'm gonna be deleting the pcv altogether and put a breather in the back of the lower intake along with the breather that i'm using in the valve cover. i refuse to have oil in my intake.

I'm not so sure removing your pcv is such a smart idea. i'm not too familiar with it but it disipates fumes that can cause damage if not filtered. like I said, I'm not expert, so I'll let someone explain it better, waaaaaaaayyyy better.

95cobraguy · Jan 3, 2007

unfortunately, u r right. the only reason i'm thinking about ditching it is because i put maybe 2,000 miles a year on my car with a few oil changes mixed in so hopefully the crankcase will stay its usual clean self. if it was my daily driver i wouldn't do it.

SQUEEZE&STROKE · Jan 3, 2007

Deleting the PCV is fine as long as the crankcase is VENTED and the vaccuum side of the PCV is PLUGGED. This is a common problem on lightning's as well, the pcv sucks up alot of oil and clogs the intercooler. The last time I cleaned the Intercooler I'd had enough, I capped the sucker side and threw on some breathers...havent had a problem since.

On my mustang, I ran a catch can, but when it goes back together, I am outting a vacuum pump on it. (race only)

HISSIN50 · Jan 3, 2007

Deleting the PCV might be fine but it's not optimal. The PCV is an active evacuation, as opposed to the passive breathers. If PCV can be made to work, it's a good idea to keep it.
Forced induction is a different animal (and a place where ditching PCV can be a solution), but I wasnt aware we were dealing with it.
Just MHO.

94opalgt · Jan 4, 2007

i run an oil separator and i don't have any issues with oil in the intake like i used to without one

95cobraguy · Jan 4, 2007

HISSIN50 said:
Forced induction is a different animal (and a place where ditching PCV can be a solution), but I wasnt aware we were dealing with it.

i'm forced induction and the pcv, separator, and everything else people try is more headache than its worth, especially on a forced induction car. i spent hours on here and over on the corral researching old posts about this problem and nobody had a definitive answer. deleting the pcv, adding a second pcv, vacuum pumps, separators, one way check valves, this, that, were all alternatives people were trying. i'm gonna ditch it and monitor my engine, especially the oil.

95cobraguy · Jan 4, 2007

double post

HISSIN50 · Jan 4, 2007

95cobraguy said:
i'm forced induction and the pcv, separator, and everything else people try is more headache than its worth, especially on a forced induction car. i spent hours on here and over on the corral researching old posts about this problem and nobody had a definitive answer. deleting the pcv, adding a second pcv, vacuum pumps, separators, one way check valves, this, that, were all alternatives people were trying. i'm gonna ditch it and monitor my engine, especially the oil.

I don't disagree with you for your set-up. However, I must have missed that BlueOvalstangGT is running forced induction. If he's N/A, I would not necessarily relate forced-induction crankcase ventillation requirements as apples to apples with what one can use while NA.

95cobraguy · Jan 4, 2007

i don't think he's forced induction, though it says in his sig he has a n20 kit waiting to go on. from all the researching i did on this both forced induction an n/a guys were having problems with this, especially when changing intakes. i dont know if it has to do with the baffles supplied for the aftermarket lowers or the additional airflow of aftermarket intakes but even with the baffle in place on my edelbrock lower and a home depot separator inline i was still pulling oil into the manifold. funny thing is, oil would collect in the separator. i guess oil was finding its way past the separator into the manifold. i know its not an ideal fix to ditch the pcv, i rather keep it, but too much headache on a forced induction car.

94gts · Jan 4, 2007

i have a take on this beacause my motor has some bad rings. so i think i get the worse blow by here

anyway, my car makes so much pressure, that my breather gets completely soaked in oil. oil also gets blown out of the dipstick and rear main seal. the entire left side of my motor and engine bay is covered in oil

have pcv and a breather on the driver valve cover (thats where my filler neck is)

this spring, when the new bottom end goes in, i am going to run a completely closed pcv system. instead of the breather i am going to run vacuum to the upper intake like it is from the factory (well its on the inlet pipe). i dont think the closed AND open system i have now does its job that well

BlueOvalStangGT · Jan 4, 2007

My car is N/A.

tjh566 · Jan 4, 2007

So in summary Forced Induction+PCV delete with a breather is ok to run?

95cobraguy · Jan 4, 2007

tjh566 said:
So in summary Forced Induction+PCV delete with a breather is ok to run?

in summary, some say yes, some say no. u could do what i did and spend a few hours researching old posts and threads on here and the corral only to find guys trying several different methods to try and fix this. i think i'll delete mine and see how it goes. forced induction cars are a real pita with the pcv.

95cobraguy · Jan 4, 2007

kyle (94gts) fix that car already. did u call the # i gave u?

94gts · Jan 5, 2007

not yet, trying to access my money situation. i think i need to get a second job

TSWG00 · Jan 7, 2007

I notice a bit of oil in the upper but I thought that was from when my piston exploded and shot up into the upper intake lol guess i was wrong. Didn't know it was a problem with the 95's. I thought the PCV valve was a one way check valve so that oil would not get into the intake. Either way I would like to remove mine when I get my new engine its a pain in the ass to get to and change lol.

HISSIN50 · Jan 7, 2007

The PCV valve vents crankcase vapors; its direction of flow is towards the intake.

I am STILL getting oil in my upper intake....please read. (MS Paint Illustration :) )

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