GroceryGetr Posted yesterday at 02:54 AM Report Share Posted yesterday at 02:54 AM (edited) Hi All, First time post. My wife's 2019 ST has a bit of drivetrain noise that has had me concerned for awhile now and I want to fix. Before heading to the dealer I figured Id ask around in order to show up informed considering it's OOW. (100K) The sound is not very loud, just a slight clunking sound (middle rear) whenever you let off on the gas or accelerate at lower speeds (under 40) It's probably doing it at higher speeds but cant be heard due to higher rpms and road noise. My first thought was a bad U joint or some slack in the diff but I'm fairly certain these AWD units are built a little differently? My inspection mechanic said it was drivetrain slack (not very specific) and to just ignore it (not happening). No surging or bucking, just an annoying sound that says wear and a potential catastrophic tear... Any ideas? Thx Edited yesterday at 10:22 AM by GroceryGetr Quote Link to comment Share on other sites More sharing options...
Samurai Edge Posted yesterday at 03:41 PM Report Share Posted yesterday at 03:41 PM Easiest thing to do is get the car up on ramps, or a lift if you can, and engine off, in park, put your hands on the driveshaft(s) and rotate them by hand. They should move slightly but not a lot. Especially pay attention to the areas around the u-joints, connections to the rear diff and transmission. If it feels fairly tight, then there may be no issue at all. Also check any mounting points along the driveshaft(s) to the body as a bolt may be loose causing the noise you are hearing. Quote Link to comment Share on other sites More sharing options...
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