Chattering 6R80

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ZoNiE

Active Member
2nd Gen Owner
V8 Engine
Joined
Jun 11, 2001
Messages
292
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Location
Tonto Forest Estates, AZ
Hi folks, my 2009 V8's transmission makes a chattering or rattling sound at very low speeds. I first noticed it in the drive through at a fast food restaurant as it reflected off the close wall. Dealer (two of them) said everything is fine. It's not like the buzz that the Chrysler automatics make, just different. Almost sounds like two gears not entirely meshing, like an outboard motor on a boat makes when shifting it too slowly into gear.

I tried to record the sound, but I have to be moving for it to happen.

Otherwise it shifts and operates as it should.

It has done it for years, but has me a bit worried as I'm getting close to 150K. My 2001's 5R55e gave it up at 62K. This one has not, yet. What a difference.

Anyone have this issue or know what it is?
 

Todd Z

Well-Known Member
2nd Gen Owner
V6 Engine
V8 Engine
Joined
Sep 21, 2003
Messages
21,507
Reaction score
339
Location
Long Island, NY
Check your exhaust manifold heat shields and other components.... Its probably not the trans. Sounds like the carrier bearing on the driveshaft, or axle or hub bearing or something along those lines…
 
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