Hey mechanic.

I fixed the problem today!  Yahoo. I think you might be proud of me... lol

After much head scrathching - to me vaccum is like electrical...impossible - I said to hell with it all and re did the "vaccum" the way I wanted based on things I've seen before. Here's what I did.

First, the valve covers have an oil filler on the driver's side and a PCV valve opening on the passenger's.  I left the oil filler side alone and replace the PCV value with a breather cap, and capped the vaccum input for the PCV on the throttle body opening.

Then, I took the PCV on the lower manifold - it connects to the upper intake (1993 Cobra) and another mystery tube under the intake. o, I capped the upper intake nipple and connected the mystery tube straight to the vaccum tree.

Here's where it gets kinda neat.

I took the PCV valve out of the lower manifold and cut off the bottom and removed everything inside. Then, I put a bit of glue on that and glued it to the rubber grommet that hold its.  (The grommet always comes off when you pull the PCV value and falls down in the engine bay and is hard to find.)

Then, I connected that PCV valve to about a 4" piece of 5/16" tube and at the top of that installed a "ricer" (tiny) breather, and tied that to a wiring harness to keep it steady.

I started it up and it ran fine. Then, the moment of truth - where there was a lot of suction on the oil filler cap before, there is none now and it popped right off.

I took the car out and let it heat up good (made more noise when it was warm it seemed) and turned it off. No howl. No screetch. Nothing.  Sweeeeeet.

So, it won't pass emissions but it would fail already - no smog pump and no cats (previous owner). Fortunately, in Alberta that isn't a concern, and being I've put 200 miles on it this year, not really an environmental killer taking it out Saturday nights between June and September.

So, thanks for your help again.

I have a few more questions if you're up to it...

Brad

 There are two ways to share knowledge.... you can be dragged around by the hand and learn little if anything.... Or someone can give you a shove in the right direction.

 Problem... getting a shove in the right direction requires effort on the part of the person getting shoved.... If you expend the effort, you learn...

 The idea is "self sufficiency"... this is a good thing...

   "Brad and Karen" <BradandBrooks@shaw.ca> wrote in message news:UCQrk.30111$hx.16340@pd7urf3no...
   Thanks for the advice. That's what this group is for isn't it... to share some knowledge with people of like-interests. I wish I knew more than I do about engines, but that keeps the Ford boys employed eh?  ;)  (You should see under the hood of my 2006 Lincoln... I'm scared to even put oil in it...lol)

   Oh, for what it's worth on the 5.0, there is a lot of suction when I take off the oil filler cap.  So... clearly, I have a problem that needs to be rectified quickly lest I damage something expensive.

   Thanks again man.

   B

     <mechanic@telusplanet.net> wrote in message news:wNOrk.9303$nu6.7430@edtnps83...
     That would be the place I check first.... What I have seen several times.... The inlet side of the PCV system can become restricted or (with engines like the 5.0 or 5.8) the intake gasket can fail allowing vacuum to build in the crankcase.... Vacuum is a very powerful force and few understand what it can do.... Vacuum inside the crankcase can turn a crank seal into a "reed" (like a saxophone or clarinet).... Sometimes, the force is strong enough for us to hear the noise at idle... sometimes not.... With the engine running (whether you can hear the noise or not)... WITH THE ENGINE RUNNING, remove the oil filler cap.... Does it remove easily? Does it require a great deal of force to lift it free?

     A point of interest.... all of you that completed high school should have learned all of the principals involved in the infernal combustion engine.... Well.... you should have been taught them... the "learning" part requires more effort than most high school boys were willing to invest. And don't be busting my chops for that statement.... I have had my fill of RAP student placements... I can't teach them anything because these young'uns already know a lot more than I do....

     I never made it to a high enough grade to have someone teach me Bernoullis principal or Kerchoffs Law... I had to learn this stuff on my own..... But a lot of guys had people trying to teach them this stuff..... and these guys spent the whole hour trying to look up Mary-Jos skirt.....

     You've spent a lot of time furbling around with what should be a piffling little problem.... Take a page or two from my book.... ":If you don't know how something works - how the f.ck are ya gonna fix it?"..... Once you know how a system works, it only requires the application of a bit of logic (we are all born with it... it is up to us if we use it or not) to arrive at the cause for the concern.....

     You are waiting for me to spoon feed you.... it don't work like that.
       "Brad and Karen" <BradandBrooks@shaw.ca> wrote in message news:94Krk.208788$gc5.197303@pd7urf2no...
       Hey Mechanic, you're back. I left a note for you like this on at RAMFM.

       So, PCV eh?  

       The oil filler doesn't have a hose, but there is one on the passenger's valve cover (after market FRCC valve covers) that runs to...hell, I'm not sure, I'd have to look.

       I replaced that badboy a few weeks back, but not the hose.

       Thank you very much. At least I have a good place to start looking again.

       And I will also check out the vacuum soleniods and heat risers as suggested by anonymous.

       Thanks guys. Will do tomorrow and let you know.

       Brad

         <mechanic@telusplanet.net> wrote in message news:xLsrk.9156$%b7.3399@edtnps82...
         PCV system - most likely the inlet side ... usually a hose (about 1/2" ID) that goes from the oil filler stem to the air cleaner on these older gems... The inlet may be plugged (some had filters - others were directed to the clean side of the air filter)  or the hose collapsed or filled with guck....

           "Brad and Karen" <BradandBrooks@shaw.ca> wrote in message news:C_rrk.104299$nD.61129@pd7urf1no...
           Hey guys. 1993 Mustang 5.0. I have a vaccum leak from somewhere I can't find. When I turn off the car, you can hear it whine/whoosh/exhale for a second or two as the air lets out (almost like a "whoooo-ooo-oo-o-o-o----o---o----osh".  BUT, if I leave the oil cap off the car, and turn it off, no whoosh.

           I didn't think the engine creates a vaccum?  Anyone know where to look for the leak from this symptom.

           Thank you.

           Brad