A4 funny shifting
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Registered User
Joined: Jun 1999
Posts: 222
From: Olympia, WA
A4 funny shifting
My trans. is acting up and I would like to know what I should expect. Both situations are most common at freeway speeds. Basically if I floor the car the trans feels like it downshifts twice, ie. maybe it is dropping from 4 to 3 and then 2, with a noticeable delay- whereas before it would just feel like it went straight into the chosen gear. This is more noticeable in D than OD, but happens in both.
Also when I am accelerating at part throttle(~60-75%), steady position, the trans will sometimes downshift for a second or two and have trouble choosing gears. In other words rather than accelerating smoothly like it should, the car starts accelerating, dropshifts as if it's being floored, then quickly goes back to the previous gear.
These types of things are hard to explain... But the car definately doesn't feel right at all. Any ideas what the problem could be?
Also when I am accelerating at part throttle(~60-75%), steady position, the trans will sometimes downshift for a second or two and have trouble choosing gears. In other words rather than accelerating smoothly like it should, the car starts accelerating, dropshifts as if it's being floored, then quickly goes back to the previous gear.
These types of things are hard to explain... But the car definately doesn't feel right at all. Any ideas what the problem could be?
Registered User
Joined: Mar 2000
Posts: 835
From: HOUSTON TX USA
Well, you asked for anyone.
By no means am I a tranny expert, but I do wonder if you have tried changing the fluid & filter .
If it is sludged up & not allowing fluid to move properly, or if a piece of trash somehow has been trapped this could cause troubles.
The down side to this is that (in theory) if the tranny has never been serviced and is in fact being held together by the internal "goo" present it may completely crater after you change fluid.
This mainly applies to high mileage units that have never been previously serviced.
However, if it is dying anyway, I do not see where you will be that much worse off - especially if you change the fluid & filter yourself.
I will also say that I was willing to risk this on my '91 Suburban 4 X bought used w/ 105K on the clock.
I did not have any tranny issues, but figured I'd change it so that I would know when it was done - with the above thought in mind.
Four years & 24K later (with one additional tranny service this year) no problems.
(The truck is a back up - my SS is the daily driver.)
Good Luck to ya !
Britt
If it is sludged up & not allowing fluid to move properly, or if a piece of trash somehow has been trapped this could cause troubles.
The down side to this is that (in theory) if the tranny has never been serviced and is in fact being held together by the internal "goo" present it may completely crater after you change fluid.
This mainly applies to high mileage units that have never been previously serviced.
However, if it is dying anyway, I do not see where you will be that much worse off - especially if you change the fluid & filter yourself.
I will also say that I was willing to risk this on my '91 Suburban 4 X bought used w/ 105K on the clock.
I did not have any tranny issues, but figured I'd change it so that I would know when it was done - with the above thought in mind.
Four years & 24K later (with one additional tranny service this year) no problems.
(The truck is a back up - my SS is the daily driver.)
Good Luck to ya !
Britt
Thread Starter
Registered User
Joined: Jun 1999
Posts: 222
From: Olympia, WA
Thanks for the help, I was considering that but like you said I am worried about the sludge. But I guess you have a point, if it's going to go it's gonna do it anyway...
Looks like thats the next step!
Looks like thats the next step!
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