uh oh. my pcv valve is possibly shooting oil into my intake. had it lookied at only through the throttle body and from what i hear theres a bunch of oil in intake. i was told to get a new pcv valve and there was a valve or some type of deal to stop that from happenin. anyone know of this, or have this problem

 

Purchase a crankcase breather cap and block off the pcv, that's what I did with my 02 Camaro. LS1 & LS2 motors are notorious for that. You can purchase them in billet aluminum w/logos or not -They look really good and are functional

 

PM r3dn3ck he'll hook you up with something that will help you..

 

I make very nice <5micron filter kits for mustang's. Cost is around 130 shipped for a single stage or slightly more for a 2 stage.

The PCV system is there for a reason. Blocking it off leads to a lot of undesirable effects in the long term, it also requires a retune since there's a heater wire you'll have to deactivate or find yourself with a CEL. Various breather applications have been bandied about as being a good idea but they're about the worst of all possible ideas on a MAF car. It's definitely liable to get you throwing codes and depending on how you do it, even causing severe engine damage.

ALL of the air entering the engine of modulars is metered and must be for the computer to figure out the correct amount of fuel for each cylinder each time. Since mustang use narrowband o2 sensors there's no way for the engine to "know" the reading and so it has to use dozens of tables of data to guess at it. Breather side and vicariously from that, PCV air is metered through the MAF and accounted for in the fuel delivery. If you put a breather in the driver side, then the ECU has no idea how much air the PCV is sucking. At low rpm it amounts to a minor to moderate vacuum leak. At high RPM things can get nasty detonation wise and you STILL HAVE NOT ADDRESSED THE PROBLEM.

The PCV ventilates the crankcase and provides negative pressure there which is good for power, emissions, and bottom end health. Deleting it altogether is a bad plan.

For those that care for particulars: Modular motors love RPM but OHC engines really whip the oil and air up into a nice saturated mist when you wind it up and PCV air drawn from the cam covers is loaded with gobs of oil in mist form. That oil sludges up your intake, cakes your valves with ****, and reduces effective octane of your gas, and a bunch of other crap. The only solution for OHC MAF cars that are street cars is to catch the oil in a filter of some sort. Problem is the filter MUST be able to take a good whack of pressure in case of a backfire and it must filter enough to matter.

My filters use -6AN or -8AN (depending on your application) teflon core steel braided lines. They'll never collapse, burst, or do anything but work perfectly. I use steel and aluminum AN fittings and a media/coalescent filter with sintered bronze or spun glass media and a properly sized reservior(s) for your application. Normally it's just over a cup. You normally need to empty the catch about every 1000 miles but your case will vary.

The steeda filter is useless after about 300 miles. It fills up very quickly and doesn't filter as well in the coalescent phase.

You can make your own... I'll send you a parts list if you want. But it costs the same and you'll have to drill and tap your own upper plenum (I have a drilled and tapped GT plenum waiting to ship). If you're 32v I can give you a proper reinforced rubber core hose if you don't want to drill and tap your manifold cover... your choice. I won't drill cobra/mach covers. They're kinda thin for my taste.

 

im taking it to a local speed shop this weekend, ill let u know what happens or what they say, thanks

 

If it is lot of oil, you might have a blown motor. Same thing happened to me and I had three bad rings. Motor was toast. I hope you fair better.

 

i have only 750 mies on this REBUILT motor

 

That would certainly be strange then......hopefully not a serious issue. Good luck.