I'm having trouble taking off the intake manifold. I got all the bolts out that I can see. I took off the nut towards the center of the manifold, the one blocked by the cold start injector I think. its pulling out towards the front of the engine but the rear wont come loose. I can see the gap when I pull on it. I have the manifold bracket below removed. I cant see what is still holding on. it wiggles and jiggles but wont come loose. helpp meeeee