Ford Contour Intake Manifold Gasket

I Had The Car 30 Days Before It Started Shaking And Would Not Go Forward Only Backwards, Then I Replaced Some Sensors And Air Mass Flow Cyl...

Hi, I Just Changed An Intake Gasket On My 1999 Ford Contour Because Thats What The Ford Dealer Said Was Wrong. I Came Home From The Dealer...

Engine Runs Rough. Especially When Cold. Checked Vacuum, No Vacuum At Manifold. Guessing Either Gaskets Or Since It's Plastic, Maybe Cracked...