Hi, I had a mechanic do a transmission swap on my 1998 XJ8 and the car has a stall speed error code. The fluid is full but in drive it takes a while to pick up speed but reverses fine? Does anyone know what could be the cause? The transmission was supposidely good.

 

There's 4 possible causes:

1) Transmission oil level low
2) Transmission Selector cable adjustment / installation incorrect
3) Output speed sensor problem
4) Transmission mechanical failure

 

Welcome to the forum dip2000,

I've moved your question from General Tech Help to X308 forum. Members here with the same model will be able to help.

Please follow this link New Member Area - Intro a MUST - Jaguar Forums - Jaguar Enthusiasts Forum to the New Member Area - Intro a MUST forum and post some info about yourself and your vehicle for all members to see. In return you'll get a proper welcome and some useful advice about posting to the forum.

Graham

 

thank you. Where is he Output speed sensor located?

 

In the transmission.

https://www.jaguarforums.com/forum/x...rmation-78132/

 

If it takes a while to pick up speed, it sounds like internal mechanical fault, or possibly low fluid. Drive it by a Jag shop or dealer and have them take it for a spin, they shouldn't charge you. It should be relatively easy to tell if it's slipping.

Make sure the letters/numbers on the shifter surround match the corresponding gear ("D" lights up in drive and so on).