Drivetrain slack?
Thread Starter
Burning Brakes
Joined: Apr 2023
Posts: 1,084
Likes: 391
From: Florida
2025 C6 of the Year Finalist - Unmodified
Drivetrain slack?
Is it normal lets say when using the paddles in an A6 transmission cruising around 2000 rpms to feel like the drivetrain has slack when getting on or off the throttle even lightly? The torque tube was apart less than 10k miles ago and the guibos replaced even though they were still good. Is this normal with an automatic? It’s almost like “on/off” slack and seems more noticeable at slow speeds in “lower rpms” while using paddles. Don’t notice anything in drive not using the paddles… Thanks
Thread Starter
Burning Brakes
Joined: Apr 2023
Posts: 1,084
Likes: 391
From: Florida
2025 C6 of the Year Finalist - Unmodified
Honestly I never noticed it until using the paddles passing through a 15 mph speed limit area in 2nd gear. As long as it’s normal with the torque converter, I had no idea…Just wanted to make sure, don’t want to rebuild the driveshaft again in the garage. I used febi bilstein guibos which held up good in my C5 so doubt they deteriorated over 10k miles plus being an A6 with torque management. Thanks for confirming
Race Director
Joined: Sep 1999
Posts: 12,422
Likes: 905
From: CONCORD NC
honestly I haven't drive a paddle C6 in a long time but it's still a traditional automatic. I assume the torque converter would not be locked at low speed/2nd gear as you describe but I could be wrong
Thread Starter
Burning Brakes
Joined: Apr 2023
Posts: 1,084
Likes: 391
From: Florida
2025 C6 of the Year Finalist - Unmodified
Is there anything else that would cause “slack” other than bad couplers? I’ll have to try cruising at say 3000 rpm’s and see if it still does it… hoping it’s just normal with the torque converter.
Melting Slicks
Joined: Apr 2019
Posts: 2,487
Likes: 1,151
From: Northern Wisconsin
There could be excessive play in the transmission or differential. To a lesser degree, I suppose there could be play in the splines as well.
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