Quote Originally Posted by neshyynesh View Post
So I plug all three?
Hmmm, I've only seen the single vacuum port HAC solenoids. There's a single port between the mounting screws - where do the other 2 connect to? The port I mentioned is the one I'd seal up first but there could easily be a vacuum leak being caused by the other ones and it's affecting internal vacuum metering. If you can post a pic or find a related image it would go a long way to helping you out (you might be either the first or one of very few members that have run into this issue)