B BobH Member Jul 23, 2008 #2 If the PCV is carboned up, it won't close at idle. It'll act like a vacuum leak.
R RobertM Member Jul 23, 2008 #3 You probably have a clogged PCV valve or a clogged idle air control valve. Both can be cleaned with a can of Gum-out. Good Luck!!!
You probably have a clogged PCV valve or a clogged idle air control valve. Both can be cleaned with a can of Gum-out. Good Luck!!!