I noticed a lot of oil in the SC. I was reading several threads on this and the there is good information. I'm also having an idle issue, the kind that points to an air intake leak. So the question is, given the design on the series 2 blower, is having a breather filter on the valve cover promoting the air leak by allowing excessive air (and oil) through the PCV? And if so then could also having excessive ring blow-by also do the same? (but maybe the oil smoke is caused by the PCV?)
I noticed a lot of oil in the SC. I was reading several threads on this and the there is good information. I'm also having an idle issue, the kind that points to an air intake leak. So the question is, given the design on the series 2 blower, is having a breather filter on the valve cover promoting the air leak by allowing excessive air (and oil) through the PCV? And if so then could also having excessive ring blow-by also do the same? (but maybe the oil smoke is caused by the PCV?)
The PCV is not new but when looked at it looked clean. I'll replace it anyways.
So that is interesting if true about the intake gasket leak. Like I said it has the symptoms of having an air leak.
But that did not really answer my question about adding a breather on the valve cover.
A breather would not really solve anything. It would make a mess of your engine bay if you have too much pressure in your crank case. Solve the pressure problem and all will be good again. The 3800SC is known for lower intake leaks. There is a new revised metal gasket that solves this. The repair is not very complicated and would maybe take 4 hours of your day if you take your time.
A breather would not really solve anything. It would make a mess of your engine bay if you have too much pressure in your crank case. Solve the pressure problem and all will be good again. The 3800SC is known for lower intake leaks. There is a new revised metal gasket that solves this. The repair is not very complicated and would maybe take 4 hours of your day if you take your time.
Cheers!
thanks. Ya, I think I'll replace the gaskets. I've already had the blower off recently so this shouldn't be to difficult.
There is a plastic insert that installs under the PCV valve on 3800 Series 2 and 3 SC engines. Make sure your PCV insert is still present, if not, it can cause problems.
-ryan
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There is a plastic insert that installs under the PCV valve on 3800 Series 2 and 3 SC engines. Make sure your PCV insert is still present, if not, it can cause problems.
-ryan
ryan, unless I'm blind I don't see one. All that was there was the PCV and spring. This may be a stupid question, as I haven't been to the store yet, but can I expect the plastic piece to come with the new PCV?
[This message has been edited by My1stMidEng (edited 06-18-2014).]
ryan, unless I'm blind I don't see one. All that was there was the PCV and spring. This may be a stupid question, as I haven't been to the store yet, but can I expect the plastic piece to come with the new PCV?
When you pull the spring and the PCV valve out, the plastic insert should be left in the blower housing. It if is missing, then that could be the cause of some (if not all) of your problems. Typically the inserts fall out or get removed when someone is doing work (cleaning, etc) to the blower housing after it has been completely disassembled.
I believe GM is the only place you can get a new replacement insert, and you might need to buy a PCV valve "kit" in order to get it all. Consult your GM parts dealer.
[This message has been edited by Darth Fiero (edited 06-18-2014).]
When you pull the spring and the PCV valve out, the plastic insert should be left in the blower housing. It if is missing, then that could be the cause of some (if not all) of your problems. Typically the inserts fall out or get removed when someone is doing work (cleaning, etc) to the blower housing after it has been completely disassembled.
I believe GM is the only place you can get a new replacement insert, and you might need to buy a PCV valve "kit" in order to get it all. Consult your GM parts dealer.
Ryan, Are there different blowers used on these engines? I pulled the PCV and there no plastic part. And I don't see any room for one either. Could I have a different series maybe? I was told this blower came from a 97 GTP. I tried posting a couple pic but PIP is timing-out.
Thanks Ryan. Yes there is a plastic piece. I didn't realize it was down in the hole a ways and not on top. I couldn't get it out either until I made a hook to pull it out. It came out hard because one of the wall pieces was broken. So maybe this is the problem.
Does it matter if this plastic part faces one way or the other - orientation? I noticed holes in the bottom.
Thanks Ryan. Yes there is a plastic piece. I didn't realize it was down in the hole a ways and not on top. I couldn't get it out either until I made a hook to pull it out. It came out hard because one of the wall pieces was broken. So maybe this is the problem.
Does it matter if this plastic part faces one way or the other - orientation? I noticed holes in the bottom.
Thanks
I believe the PCV valve will only fit into the plastic insert one way and the insert will only install into the blower housing one way.
