Hi all, our 4l sovereign, 1996,keeps jumping into sports mode,any clues on how to remedy this, as gets expensive on fuel!!

 

Welcome to the forum Anthea,

I've moved your question from General Tech Help to X300 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

 

Anthea - that switch down at the shifter normally has a pretty stiff detent to it, so unless it's broken (as mine is) it should stay put.

Mine, being broken slides easily and will go back and forth.

If you try to remove the leather padded trim around the shifter for a look, be careful about those plastic tabs (on the chrome-plated plastic piece).

 

My car has a rocker switch for sport/normal. There are two wires on the switch, one is ground and one goes to the transmission control module. When sport is selected the switch is closed and a ground from one wire is applied to the other wire. Maybe your switch is faulty, maybe a wire is chafed through and is grounding? You could disconnect the switch and cover the ends of the wires and see if it stays in normal mode. If it no longer goes into sport then the switch is faulty.