Hi all. Just wanted to introduce myself as a new member. Ghost sent me over after a discussion on Pistonheads.
Just purchased a 1998 996 tip and I'm already experiencing problems with the tip box, which I suspect is quite serious. Would really appreciate any opinions!
It started as a fairly mild blip in 2nd gear. The car pulls away fine, upto about 2500 - 3000 rpm, and then under constant throttle pressure it feels like the car tries to change gear. The revs dip 300rpm or so, you can feel a noticeable 'donk', especially before the car is fully warmed up, and then it resumes normal progress. It really does feel like a gear change, but it definitely isn't. It also only occurs in 2nd gear, always at a similar point rpm/speed, and is much less pronounced when the car is fully warmed up.
So... I took the car to a specialist for a transmission fluid and filter change... nothing else. And it has come back twice as bad as it was. The donk in 2nd is still there, just the same, but in addition it has now started to slip / miss a gear completely!!!
Every now and then at very low speeds, the car will suddenly rev freely for a second, like it's in neutral, and then 'catch' a gear, jerk a bit, and carry on like nothing happened. It has done this two or three times now and I don't feel I can drive the car any longer incase more damage is caused. It feels obviously as if the crank is not connected to the gear box, which I am guessing is something to do with the Torque Converter or valve body. Not sure if Porsches have any friction plates or anything similar which could be slipping without enough oil. When I first left the garage it slipped twice whilst going slowly over speed bumps, so I wondered if it was related to the car being tilted a little starving the torque converter of oil??
It has also stalled once in Drive whilst stationary. I was sat waiting for another car to do a 12 point turn. I was in D, on the brake, and after 30 secs or so the revs wobbled and it just stalled.
Any thoughts or similar experiences anyone?
Yours desperately.
A.
Migration info. Legacy thread was 139183
Just purchased a 1998 996 tip and I'm already experiencing problems with the tip box, which I suspect is quite serious. Would really appreciate any opinions!
It started as a fairly mild blip in 2nd gear. The car pulls away fine, upto about 2500 - 3000 rpm, and then under constant throttle pressure it feels like the car tries to change gear. The revs dip 300rpm or so, you can feel a noticeable 'donk', especially before the car is fully warmed up, and then it resumes normal progress. It really does feel like a gear change, but it definitely isn't. It also only occurs in 2nd gear, always at a similar point rpm/speed, and is much less pronounced when the car is fully warmed up.
So... I took the car to a specialist for a transmission fluid and filter change... nothing else. And it has come back twice as bad as it was. The donk in 2nd is still there, just the same, but in addition it has now started to slip / miss a gear completely!!!
Every now and then at very low speeds, the car will suddenly rev freely for a second, like it's in neutral, and then 'catch' a gear, jerk a bit, and carry on like nothing happened. It has done this two or three times now and I don't feel I can drive the car any longer incase more damage is caused. It feels obviously as if the crank is not connected to the gear box, which I am guessing is something to do with the Torque Converter or valve body. Not sure if Porsches have any friction plates or anything similar which could be slipping without enough oil. When I first left the garage it slipped twice whilst going slowly over speed bumps, so I wondered if it was related to the car being tilted a little starving the torque converter of oil??
It has also stalled once in Drive whilst stationary. I was sat waiting for another car to do a 12 point turn. I was in D, on the brake, and after 30 secs or so the revs wobbled and it just stalled.
Any thoughts or similar experiences anyone?
Yours desperately.
A.
Migration info. Legacy thread was 139183
