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Re: Tranny Q

From: "Al Powell" <APOWELL@agcom.tamu.edu>
Date: Sat, 10 Aug 1996 20:40:02 CDT
Subject: Tranny Q

>> On Date: Wed, 07 Aug 1996 14:59:54 -0400 (EDT) Stephen wrote: 
>> <<
>> When the car is hot (after having driven for a while), if I'm in Park and 
>> want to back up, I put the (automatic) tranny in R and it just sits there 
>> unless I rev the engine up, then it clunks into gear and away I go.  

My '83 Avant sometimes sticks in 1st gear when cold.  It has been doing 
 this intermittently for two years now.  About 3 years ago, I had to 
 get a recon dif as I suddenly lost huge amounts of ATF fluid and I was 
 told that the dif had a very chewed-up bearing and shaft.  The 
 mechanic told me that the auto box appeared ok as the fluid was clean 
 (this was probably because the only way I could drive the car to the 
 work shop was to put in a couple of pints of new ATF).

I have noticed that this intermittent sticking in 1st gear usually gets 
 much worse the day after a long trip.  This points to hardened (and 
 less effective) seals.  On rare occasions, under hard acceleration 
 when warm, the gearbox feels as if it is leaping backwards and 
 forwards between 1st and second.  Also, sometimes the change between 
 1st and 2nd feels as if something is slipping and I have to wait until 
 3rd comes along before the soggy feeling goes away.

>1)  Check the fluid NOW!  Top it off if low.  If i's OK on level 
>or doesn't change the problem, 

Level for me is OK.  However, fluid looks dirty, not black, but 
 definitely dirty.

>2)  Drop the fluid and CHANGE it  and the screen NOW!

I thought cleaning the screen was OK.  Do I need to replace it?

I asked the list about this before - one suggestion I got was to clean 
 the governor.  The day before I was due to do this, the problem went 
 away (but only for 6 months or so - typical).

>Stephen, email me directly if you want specific information on the 
>failure behavior of this unit and the probably chain of events.  I 
>will cross my fingers for you.

I'm not Stephen, but I would be very interested in more information on this.

>Al Powell

1984 Audi 80 quattro
1983 Audi 100 Avant