For lack of a better way to describe what is going on with my 2001 XK8 convertible. I have a ZF Transmission in my car when the trans is cold it shifts perfect, after it warms up if I give it gas to quickly from a stop it revs up before catching and there is a bad bump as it drops into gear. This happens in Fwd. and reverse. The car shifts out perfectly through the gears. there is also a wining noise at Hwy. speeds or when I put it into sport mode with the button by the shifter. Any insight would be helpful. I have flushed fluids already. Repair facility did not change filter.

 

How many miles are on the car?? How long ago/miles ago was the fluid flush performed?

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The car has 91500 miles on it, she started this at about 90000 and I had the fluids changed at that time! I can drive it without feeling the bump if I start off slowly! I've actually gotten pretty good at it unfortunately. I will post in Newby forum.,.

 

http://www.jagrepair.com/images/TSB/XJ/JTB00040NAS2.pdf

have this performed at the dealer and the fluid level checked. This should take care of everything.

 

I believe that TSB is for the 6 speed, not the 5 speed that you have. Check out this link...

https://www.jaguarforums.com/forum/x...re-info-88369/

 

+1 on the a drum failure. Its probably just starting to fall apart as its intermittent. When it loses more of the drum, you're going to have more parts in the transmission floating around doing damage. I'd recommend getting a rebuilt, improved A-drum installed. Unfortunately, you'll lose that nice, new fluid you just treated it to.

 

careful, id find an independent foreign transmission specialist to read for any codes in the tranny.


If it comes to a rebuild, It would save a ton of money for you to just remove the tranny and get a bench build, and install yourself. Unless the labor is free with rebuild.

I have found excellent used units as well.

 

Even if I were to rebuild or install a different trans I'd still replace the A drum with a HD unit. +2 on a failing drum, guessing from this distance.