Donate NOW and support Jag-lovers!

IMPORTANT! We have moved! The new site is at www.jag-lovers.com and the new Forums can be found at forums.jag-lovers.com

Please update your links. This old site will be left up for reference, until we can move all the old content over to the new site.

Volunteers wanted! Please help us move information from these pages to the new site, and also join us in providing new, exciting content.



Serving Enthusiasts since 1993
The Jag-lovers Web

Currently with 3,166 members





Hot starting problem, the final catch 22
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Hot starting problem, the final catch 22



The facts are all in, now for the solution.  

There is no retained pressure in the injectors.  I have turned the vehicle
almost upside down and can't find the non-return valve.  Is it in fuel pump?
If not has to be under the vehicle.  None of the other places mentioned in
the manual are valid.

When cranked cold, the fuel pump comes on with the starter motor.  When hot
the fuel pump does not start till the engine fires, the manual says that is
to prevent overloading if there is a stuck injector.  There is the catch 22.
No pressure to pump gas into the injectors, no start.  No start no fuel pump
(unless cold).  So until I get pressure holding in the injector rail when
the thing has been parked, I have to fool it to get the pump running (read
keep trying to start it in short bursts).

Now does that sound like the problem one of us has had with the car not
starting at all?  If the cold start circuit doesn't work and there is no
pressure held in the fuel rail the odds of it starting at all are pretty
well zero!

BTW, this is a series 3, manufactured late 1979, sold as an 1980.  

Tom, who now has a shiny new fuel pressure guage mounted under the hood...



Follow-Ups:

 

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 - 2024
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: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com), IP Address logged as 3.17.155.88 on 21st May 2024 18:34:11