I have an X300 1994 4 litre. At idle it sometimes races at a higher speed than normal. The cable and mechanism has been lubricated and the air box cleaned several times. If you tap the accelerator with your foot it returns to normal.

Had anybody else had this problem?

 

Welcome to the forum Shacks,

Good to have you with us.
You need to post your problem in the tech section for your model XJ X300 / XJR - Jaguar Forums - Jaguar Enthusiasts Forum

Enjoy the forum.

If you haven't done so already you should add your car details to your signature to help others to help you.

 

Welcome to the forum Shacks,

Follow Norri's link to the X300 section for help and advice.

Please also visit the Australia / New Zealand Region section Australia / New Zealand - Jaguar Forums - Jaguar Enthusiasts Forum to find other members in your part of the World.

Enjoy the forum.

Graham

 

Hi Shacks & welcome aboard, good to have you here with us

Any useful information you may need such as how to post pictures, edit signatures, add videos, use the search facility etc, can be found here
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Why not drop in and visit the regional section for your area?
There are lots of members local to you with the same interests.
Regional - Jaguar Forums - Jaguar Enthusiasts Forum

There's a really great mix of information, camraderrie and fun here....

I've manually upgraded you to full forum access so you can better view the whole site and all its features

Please Jump on in and enjoy the site.................

 

Hi all. The idle on my 95 XJR6 has been perfect @ 750rpm for years now. All of a sudden it now idles at 1100rpm and drops to 950rpm when auto box engaged. So I carried out a few checks: no fault codes showing, when I started engine from cold ( in park) it starts with a normal idle but if left alone it slowly rises to 1100rpm, stop engine, restart and it slowly rises from normal idle to 1100rpm again, lubricated throttle cable and Traction control device. So I suspect the idle control valve ( a pig to change on an XJR). Am I on the right track in assuming it's the idle control valve?
Cheers MartinXJR6 (Ireland)

 

Welcome to the forum, Shacks. Glad you've joined. Lots of info over in the X300 section. Here's a place to get started: https://www.jaguarforums.com/forum/x...carman-111454/