Join Date: Feb 2004
Location: Lexington, Kentucky USA
Look for a leak (called false air) into the intake system, from maybe a split in the rubber tube across the top of the motor, or in the convoluted flex section, or maybe a loose clamp around that hose, the throttle body or the airflow meter. Sounds like it's gulping air from somewhere it shouldn't. Listening by using a small diameter hose, like vacuum hose, and probing around those areas, you can actually hear the hiss of bad vacuum leak. If you have an old fashioned vacuum gauge, connect to the intake manifold and check the vacuum reading. It should read above 14" to 15" hg at idle.
If you find a split hose or tube, you can repair it easily using a product called Shoe-Goo.
Lexington, KY USA