The Jag runs fine in drive. When the car is in park with motor running it shuts down after about 5 minutes of idling.

 

Welcome to the forum Bernie,

I've moved your question from General Tech Help to S-Type 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

 

Hi and welcome.
The answer to your problem may be here Engine cutting out when idling.

 

A vacuum leak will usually set a lean code, P0171, P0174, or both. Is the MIL illuminated? If so, has there been a scan for codes (a free service at many places)?

 

Except if it stalls it may not have a chance to set a lean code.

(Expect P1582 but you need OE tool to decode.)