Hi all,
I had an issue at the end of last year were my car lost drive after doing 70 ish mph.
No codes, no foward or reverse and was transported home.
After a short period of time the car had everything working again with no issues.
I decided to change the transimission oil and filter. The oil looked in good condition and there was no metal fragments on my magnets.
The car was all good as far as driving it, no issues.
This morning I used the whole J gate gears with no issues and was in drive when the same thing happened again.
I waited for five minutes and all good again. No smells, no burning, no jerking when going in gear.
No codes, no warning lights, hoping for someone has had the same issue as looking for clues to the failure.
Thanks all!

 

 

Battery?

 

Can’t say I had same issue but when you changed fluid and filter you followed proper (ridiculous) procedure? And just curious, did you change anything else? I only ask cus I have 97 xk8 USA model, just did my fluid and filter, but also put in the trans go pressure regulator valve. After fluid and filter change and following procedure as best as I could, I felt a few minor hiccups in the 100 mi or so I put on and bought more fluid just to check in case I was low.

Couldn’t hurt to double check the fluid level, ya know?

 

There are 3 possible gearboxes fitted to the X100 depending on MY and/or engine designation.
What gearbox are you inquiring about?
ZF5HP24
W5A580
ZF6HP26

 

Followed process, I have just had codes which points to TCM.

 

I have a 1997 XK8 which was build in 1996.
I have the ZF5HP24.
I have some codes now with better reader which are P1797 / P1798.
Looks like TCM but going to check all earths to be sure before going that route.

 

Sorry, Jaguar XK8 convertible build in late 1996 but registered in 1997.