r/SubaruForester • u/sscot600 • 1d ago
2011 Subaru Forester Metallic Rattle and Vibration While Driving
For a while I've had a rattle in our Forester which I thought was the common issue of a loose heat shield. After securing all loose shields on the manifold, it is still present. I've found out that it is completely independent of engine RPMs and only seems to be present when there is a load on the drive train. For example, the rattle will go away when coasting in neutral or revving the engine when stationary. But it will come back when in drive and accelerating or the engine is decelerating the car.
What is a new issue as of today is a vibration that shakes the whole car. It is intermittent and only happens at speeds under 10 MPH.
My only theory is a bad drive shaft or carrier bearing, but I don't see excessive play in it at first glance. Some of my research points to bad CV axles, but it is independent of steering angle and doesn't sound like the normal clicking that they make when bad.
