Since a few days my Alero spins at the cold start. It starts immediately when starting, but then the engine doesn’t run on all cylinders. The whole thing goes like this for about a minute, then it hits itself again and everything is ok. Unfortunately I notice that in the balance tank again small oil traces appear and I assume that the seals of the intake manifold are over again, that was at about 65,000 km already once. I had then “heavy-duty” metal seals from the USA built in and believed me on the safe side. That was five years ago. Will once again order me a sealing set in the USA, maybe the seals have become a little better.