I think my car is starting with the "hunting". Here is what happens
09-24-2005, 06:28 PM
#1
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I think my car is starting with the "hunting". Here is what happens
Shifting in city driving conditions is fine. Smooth etc., But if I drive above 60-70 and I am going down hill I feel like the TC separates or something like that and the car takes off. Then if I keep my foot of the pedal the RPMs keep jumping up and down. The moment I step on the gas or put cruize control on the rpm stay sable and the ride is smooth.
09-24-2005, 08:09 PM
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Add mine to the list too, 98 @ 70K...
same action. Take your foot off the gas at 70mph and when it hits 60 there is a noticable bump in the TC. If I lower the speed gradually there is no bump nor is there at any other time or speed. I can't see having the trans repaired for just that problem, but it is embarassing when I have passengers in the car and it behaves like that. Sometimes I almost want to flush the trans and add synthetic. I have thought about adding a product like Lucas Transmission additive. It says it works in all transmissions? I just put some in my beater (91 Caravan AWD) and feels like it helps with shifting. I hope someone finds a fix soon.
09-24-2005, 09:02 PM
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By the time you start to feel the "hunting" ...
The clutch in the torque converter is probably shot. Short of a rebuild, I expect that the best you can do now is just put the tranny in "4" rather than "D". On the bright side, 4th in an A8 is not that different than 5th in the S8.
I expect that the T/C clutch is fragile in all of our cars; and it's constantley locking and unlocking in 5th gear. Even with my S8, I never use D or 5th unless I expect to be cruising on an Interstate for more than ~15 miles.
<img src="http://pictureposter.audiworld.com/17157/speed-in-gear.jpg">
I expect that the T/C clutch is fragile in all of our cars; and it's constantley locking and unlocking in 5th gear. Even with my S8, I never use D or 5th unless I expect to be cruising on an Interstate for more than ~15 miles.
<img src="http://pictureposter.audiworld.com/17157/speed-in-gear.jpg">
09-25-2005, 07:35 AM
#7
That is not a good idea. In neutral there is no gear selected, but
the valve body is mechanically open to high fluid pressure. In park you can rev your engine, because the valve body is closed. If you go 70Mph in neutral, then the tranny is driven by the wheels so there are internal parts spinning at high speed but the pump is driven by the engine through the TC ( idle speed ). There may not be enough pressure to keep parts from burning. The purpose of the neutral is really just to give you a break ( a second or two ) between R and D. People who revving their engine in neutral instead of park, can blow seals in the tranny. It happened before.
