Read my comment on another post. I work at a dealership and have not heard of this issue. It may be regional due to certain conditions, or that we've not seen it or heard of it, a complete anomaly to us. I'm just thankful that the engine offered as base or optional isn't the 1.5L. If I remember Monday, I'm going to check as see if any dealers in the area even stock the manifold, this could say something.