[daly]

<p style="color:rgb(40,40,40);font-family:helvetica, arial, sans-serif;">Hi all

<p style="color:rgb(40,40,40);font-family:helvetica, arial, sans-serif;">I have a tiptronic and once or twice a year when pulling up to light car would stutter, rumble and stall. Seemed like the tiptronic was changing into a higher gear and stalling out because of lack of gas. Wasn't that bothersome. Recently it has been happening more often, once every week or so.

<p style="color:rgb(40,40,40);font-family:helvetica, arial, sans-serif;">Anyone experience this before and know what it is?

<p style="color:rgb(40,40,40);font-family:helvetica, arial, sans-serif;">Thx

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[oppositelock]

This seems to be a symptom of out early version Tips.  When creeping/pulling up slowly to a stop, sometimes the tip gets confused and doesn't shift down or tries to shift up at too slow an engine speed. Many others have experienced this, so it is inherent to the early tip. What to do? If it happens, knock it into neutral immediately and the engine will not stall. If you are creeping, put the trans in 3. This starts the trans in 1 instead of 2 and seems to take this issue away.  Realize that quick starts in 1 puts maximum torque through the rubber flex disc shortening its life. (Not trying to scare you, just an FYI). Shifting manually seems to take this issue away also.  If you are seeing this more frequently, especially when stopping quickly, like off a freeway, then you may have another issue. Maybe the idle speed is dropping too low.  For now, note when it is happening and see if there is a pattern and experiment with stopping at different speeds. Mitch

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[ds968]

99.9% probability of what Mitch just posted .   A shot in the dark ( that other .01%  possibility) , but replace the DME relay and see if that makes any difference .   The reason I say that is because both of my 968s, ( one manual and one tip ) exhibited stumbling and near-stalling symptoms while coming to a stop, and in both cases it was the DME relay going bad.. replaced them, never had those symptoms again.   

 

p.s. back then the DME relays were around $ 20 … so I bought a spare for each car to store in the trunk ..  Nowadays I think they’re close to $ 100 ..last I heard .   Sigh . 

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[daly]

Thanks. I will pick up a DME and see if that helps. Idle is 900-1000 rpm. 


Started to read around web and couple of people say tranny fluid low could be a cause. I'm going to check that also, but as we all know adding fluid requires doing a contortionists movement.

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[dlearl476]

as we all know adding fluid requires doing a contortionists movement.

Do yourself a favor and buy a Motive Power Bleeder. I made an adaptor for mine with a simple length of hose and a u-shaped hook of 1/4 copper pipe to replace the brake fluid reservoir cap. Add the required amount of any fluid, put the hook into the filler, pump it up, sit back and watch. No more contortionist movements.



The only caveat is you need to clean it out really well between different fluid types.

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[Waylander]

When was the last time the trans fluid and filter were changed?

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[daly]

It's been years. Always a scary thing to do, on one hand if done regularly a good thing, wait too long and the detergent in the fluid in an old car reak havoc, its the gunk that keeps the seals and everything from leaking.

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