I just finished replacing the front cam chain tensioner in my sons 95 SHO. He decided that he was going to clean the intake manifold and he cleaned it with brake cleaner. Note that he took the manifold apart to clean it. After we put the car back together it has a high pitched wine that seems to be from an air intake leak. I cannot isolate it to any one area of the manifold. Has anyone had this kind of problem after taking the manifold apart?