The largest and best supported Jaguar cars enthusiast site on the Internet!


Serving Enthusiasts since 1993
The Jag-lovers Web

Currently with 3,166 members





Jag-lovers' Ebooks
- Jag-Lovers' x300 Ebook -

4.4 - Throttle Return Spring ( )

Early models may develop a problem whereby the engine rpm will not drop to the correct idle speed. This can be caused by a dirty throttle body causing the throttle to stick ( see above ), a weak throttle return spring, or a combination of both.

Jaguar did issue a bulletin (tsb) to replace the springs on earlier models and the spring is available from dealers. If the problem persists after cleaning the throttle body, or you wish to replace it anyway, the newer part is available from the dealers.
These fitting instructions are based on the XJR model with cruise control, and so details may vary on other vehicles.

On the XJR, the throttle body is located under the inlet manifold so this must be removed first following the instructions above. Those with a ramps or a hoist may be able to gain sufficient access from underneath.

The throttle return spring is attached to the bell crank actuated by the throttle cable and is now simple to remove and replace. Ensure throttle action is smooth and that it now closes fully by pushing gently on the bell crank to ensure no further movement. Refit the inlet manifold.


 

sepbar.jpg (3094 bytes)

This section currently maintained by Pascal Gademer; questions, comments, submissions and suggestions, email pascal@jag-lovers.org

 

Please help support the move to the new site, and DONATE what you can.
A big Thank You to those who have donated already!

 


       
       
       
       

Go to our Homepage
Improve your Jag-lovers experience with the Mozilla FireFox Browser!

  View the latest posts from our Forums via an RSS Feed!

Jag-loversTM Ltd / JagWEBTM 1993 - 2017
All rights reserved. Jag-lovers is supported by JagWEBTM
For Terms of Use and General Rules see our Disclaimer
Use of the Jag-lovers logo or trademark name on sites other than Jag-lovers itself in a manner implying endorsement of commercial activities whatsoever is prohibited. Sections of this Web Site may publish members and visitors comments, opinion and photographs/images - Jag-lovers Ltd does not assume or have any responsibility or any liability for members comments or opinions, nor does it claim ownership or copyright of any material that belongs to the original poster including images. The word 'Jaguar' and the leaping cat device, whether used separately or in combination, are registered trademarks and are the property of Jaguar Cars, England. Some images may also be Jaguar Cars. Mirroring or downloading of this site or the publication of material or any extracts therefrom in original or altered form from these pages onto other sites (including reproduction by any other Jaguar enthusiast sites) without express permission violates Jag-lovers Ltd copyright and is prohibited
Go to our Homepage
Your Browser is: CCBot/2.0 (http://commoncrawl.org/faq/), IP Address logged as 54.224.184.33 on 21st Sep 2017 23:13:31