A4 Question
Safety Car
Joined: Dec 2002
Posts: 4,010
Likes: 1
From: SE Idaho
St. Jude Contributor
Re: A4 Question (add)
Technically, it is a 4-speed automatic transmission, with the 4th gear being the overdrive gear. (1st Gear: 3.059:1, 2nd Gear: 1.625:1, 3rd Gear: 1.000:1, 4th Gear: 0.696:1).
Safety Car
Joined: Sep 2001
Posts: 4,411
Likes: 1
From: Wilmington NC
Re: A4 Question (add)
Is the A4 tranny a 4 speed with an overdrive or is it a 3 speed with an overdrive.
Thanks,
Thanks,
Instructor
Joined: Aug 2001
Posts: 192
Likes: 0
From: Virginia Chesapeak
Re: A4 Question (WhiteC5Vette)
Technically, it is a 4-speed automatic transmission, with the 4th gear being the overdrive gear. (1st Gear: 3.059:1, 2nd Gear: 1.625:1, 3rd Gear: 1.000:1, 4th Gear: 0.696:1).
Safety Car
Joined: Dec 2002
Posts: 4,010
Likes: 1
From: SE Idaho
St. Jude Contributor
Re: A4 Question (Richin Chicago)
Is the A4 tranny a 4 speed with an overdrive or is it a 3 speed with an overdrive.
Thanks,
I believe it would be considered a 3 speed with with a variable ratio torque converter and a lock up feature. The transmission itself only has 3 gears? Somebody correct me if I am wrong?
Thanks,
I believe it would be considered a 3 speed with with a variable ratio torque converter and a lock up feature. The transmission itself only has 3 gears? Somebody correct me if I am wrong?
It is a 4-speed auto trans. It has four gears in the planetary system (ratios shown in previous post), and one reverse gear (ratio: 2.294:1), it also has a locking torque converter. However, overdrive is supplied through the 4th gear, not via the torque converter, and the TC will lock up in 3rd and/or 4th gear.
In D overdrive, the 3-4 gear clutch, 2-4 band and forward clutch are applied locking in fourth gear to allow for the overdrive gearing.
