I have had the car for 3 years and it have never leaked 1 drop of oil. After the sc install i can smell oil when i let it idles while the car warms up and there are now 3 two inch oil spots below the car. Any ideas what might be leaking?

 

check you pcv (Positive Crankcase Ventilation)if its not working it might be forcing a leak..

 

I pulled the pcv and it was just a hollow tube. Is this ok or did someone do it for a reason?

 

a hollow tube? There are two pcv valves on LT1s.. one is in the passenger side valve cover, towards the back of the engine. There is a tube that goes from the pcv valve to a connection on the side of the throttle body.

The other is located on the drivers side of the intake manifold, it has a tube that goes to the front of the intake manifold just below the throttle body.

 

Check your intake manifold gasket. Front and rear.

 

I had an oil leak at the rear main seal...try to find the leak relative to the oil spots on your floor...that will tell you where the leak is

 

I had no idea of the drivers manifold pcv valve. The valve cover had a tube running up to the throttle body and it had no valve in lt. It is just straight pipe. I went to Shbox.com and he shows 1 pcv valve on the drivers manifold center and thats all. When i did the supercharger install they had me reroute the hose from the pass valve cover to the air tube on the drivers side and T into it. I then capped off the old one on the TB. I will check the new found one tonight. So do i really need the one on the pass valve cover?

 

There isn't supposed to be a pcv valve on the pass side. But, that hose in the pass valve cover should now route down into the intake tube for the supercharger (not t'ed into anything) and it's original location on the TB capped off. Driver side with the actual pcv valve stays original and goes into the front of the manifold below the TB.

Ken R.

 

...mine has always had a pcv in the pass. valve cover. A tube connects it to the throttle body. Why am i the only one with a pcv in the pass valve cover?

 

It didn't come that way from the factory. The tube from the passenger side valve cover to the TB is the air source for the PCV system. This line supplies metered air (after the MAF) that passes over valvetrain to capture vapors that are then sucked into the intake system via the PCV to be burned by the combustion process. The line to the TB is rerouted when using a SC as stated above.

 

I had some oil leak with D1 FI 383ci. I ran the valve cover vent tube, and PVC to intake side of blower (good to have an oil separator here for vent tube). I also had leakage (very small amount) @ the front oil pan and rear main seal. So, I also installed breathers on each valve cover to reduce crankcase pressure. I still had some small leaks, but all the performance was there. I even changed the rear seal (twice), but it still leaked a small amount (strange? - no clutch slippage). I tried Lucas oil stabilizer with my 15w-50 redline oil (I have large bearing clearance) and the leak was vertually gone. That's where I am today.
Also, if running MAF, be carefull not to run vent tube oil thru this hot wire device (currently running it on up-stream of blower intake).
Hope this helps.

 

I am really messed up now. I checked the real pcv valve on the drivers manifold. It runs to a spot on the manifold just a little to the rear of the pcv valve. Basically there is a u shapped hose running roughly 3 inches back and connecting to the manifold again on a 6 inch or so hose. The diagram for a 95z has it running to the throttle body toward to the front of the engine. Is mine right and the 94 and 95 are completly different?

 

I checked the vacuum diagram and the 94 pcv goes to the rear and the 95 goes to the front so i guess all is well.

 

Metal/plastic housing with a valve in it that rattles when you shake it? or just a black plastic 90 deg fitting like every other car has?

 

lol, yes a pcv. It rattles when you shake it. I know what a pcv valve is

I was the second owner of my car w/ 52,000 miles on it and it was stock except a flowmaster cat-back. Its always had a pcv valve in the pass. valve cover.

I would check someone else's car, but V8 f-bodies around here are really rare!