5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

vacume problems??

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Old Aug 19, 2010 | 03:41 PM
  #1  
Detroit_Muscle's Avatar
Detroit_Muscle
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Joined: Aug 2007
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From: Michigan
Default vacuume problems??

Ok so here is my problem,

I did not put the baffle on when installing the lower intake for some reason Holley did not send it to me ( i know my mistake its my first engine build). So now I am getting oil in my TB and I belive its screwing up my Pro M 80. Cars was great fast and sounded good. All the sudden one day i saw the oil presure rise up about 2 lines from dead center. Then the car began running great for 10 min then the check engine light would come on and it would idle horible and stall out.

So my question is after doing some reasearch its the PVC / vacuume lines are giving me problems. So if i understand correctly PVC/ vacuume is for emissions (venting the engine. and for high performance drag/street cars thet have a lot of blow by. So if I delete all them put a freez plug in the lower intake and run a 3/8" hose down to the underside of my car so engine can vent hopefully no oil and no more oil in the TB. The car engine will not be affected and still be safe to drive with no damage.

Am i understanding this or am I way , Will this work. And this is just a weekend car and Michigan does not have emissions testing
thanks George

Last edited by Detroit_Muscle; Aug 19, 2010 at 04:07 PM.
Old Aug 19, 2010 | 08:54 PM
  #2  
Bubba 95SN's Avatar
Bubba 95SN
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From: N.C.
Default

Steeda makes a oil seperator, goes between pcv and intake. Aftermarket intakes have puny baffles. I took the baffle off stock intake trimmed a bit welded a small bracket for front. Fixed.
Old Aug 19, 2010 | 11:51 PM
  #3  
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Detroit_Muscle
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From: Michigan
Default

Cool thanks , I looked at that peice and after a lot of debate i have decided to get rid of the PVC / vacuume all together for the most part. with the larger oil pan and more oil that baffle wont do and just hours of taking apart the upper and lower.advanced auto parts sells vacuum caps for 3 bucks.
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