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Originally Posted by billdaman92
one thing I forgot to mention is during reassembly I noticed that the threaded elbow attached to the hose from the PCV valve (secures to the side of engine just under the ICM) seemed loose enough to be able to fall out with little effort. Could not find this rhreaded elbow at autozone. wondering if this connection not being snugly in place would contribute to the symptions.
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glad you got the big stuff fixed and it was a minor repair
BTW the tube you are talking about is GM#2450-4646 and is ~$12. Wont find it at a general parts store, you have to go to GM.
the 3 ribs on the end of the connector is flimsy rubber and it flattens out in time, best to fill the gaps between each rib with some silicone safe RTV to give it some strength... you can do this to your old tube and it will make a good seal, but I don't think it really affects performance with a small leak.
let it tack and dry pretty good, before putting it back in. And before you put the tube back in, wipe clean the hole on your valve cover where it plugs in for the best seal.