Chances are the actuator control is fine and the problem is a cracked (plastic) vacuum hose under the dash or where the supply hose goes throgh the firewall to the engine.
Start the engine and listen for a hissing sound. If you're lucky, you'll be able to hear the leak.
Let me know what you find or if you have other questions.
Joe
SPONSORED LINKS
Saturday, December 5th, 2009 AT 9:00 PM