ande_1994@yahoo.com Posted March 25, 2011 Report Share Posted March 25, 2011 Hey Im Brandon. It wont let me post and hoping i could figure my problem out before the weekend. I have a 1997 grand am se 3.1L. Just recently tore it down and did the intake gasket (which I took the push rods out with the tool i bought to lift up the rockers), plenum gasket, both vavle cover gaskets, and throttle body gasket. And one more i did with the exaust temp or w/e. Idk why i did but i pulled the plug wires w/o marking them also. I cleaned off the old gaskets well too. Mine idles rough at low rmps and kills, or it will kick it up to 2200 rpms by itself before it kills. If i rev it over 2000 it purs nice. At all times their is a loud air leak noise. Any ideas on my problems. Cant afford not to fix this so any help would be appriciated. Thanks Quote Link to comment Share on other sites More sharing options...
BXX Posted March 25, 2011 Report Share Posted March 25, 2011 You have a nasty vacuum leak. Have someone hold the RPMs steady and then you can hunt around the engine bay for the hiss. Shouldnt be too hard to find the source. If you have any questions about the vacuum lines, look at the label somewhere under your hood and it will show the vacuum routing diagram which will help you locate all the vacuum lines that you need to look at. Quote Link to comment Share on other sites More sharing options...
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