We are the original proud owners of a 1985 xj6 VDP with 75,000 miles. Unfortunately we are having problems with the fuel system. This model has two fuel tanks. When you crank the car the fuel is pumped from the driver side tank into the passenger side tank. This causes a major overflow of gas out of the filling cap. Does anyone have a suggestion as to how we can resolve this issue.
Thanks,
Tom

 

Welcome aboard. Great choice in Jags. Those Series IIIs are great....built like a tank and drive like velvet.


Here's info on diagnosing and repairing the tank changeover system:


Fuel Tank Switchover Checklist, Series III XJ6


Fuel is supposed to return to the same tank it's drawn from. That's not happening in your case, obviously. One of the return valves id probably on the blink.

Cheers
DD

 

Hello, Tom,
It looks like Doug has pointed you to the solution for your problem.
Welcome to the forums from ElinorB.
(';')

 

Welcome to the forum Tom,

Good to have you with us at Jaguar forums.

Doug has given you the link to a specific thread on this issue. Follow this link https://www.jaguarforums.com/forum/xj6-xj12-series-i-ii-iii-16/ to the main XJ6 Series I, II & III forum for help, advice and information. The 'HOW TO' thread at the top is a good place to start for info on regular issues.

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You can also visit the USA Lower Atlantic Region forum by following this link https://www.jaguarforums.com/forum/usa-lower-atlantic-nc-sc-fl-ga-66/ to find other members in your region.

Enjoy the forums.

Graham

 

<p>welcome to the forum - enjoy!!</p>

 

Welcome to Jaguar Forums Tom,

Good to have you with us.
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.
If you need help with getting around and using the forum follow this link for some help Forum Help

 

Many thanks DD. I will give it a try!

 

Many thanks DD! This Jag has been in our family since 1985 when we bought it new. It has been garaged all of its life and looks like new. This fuel problem has become a major issue that has resulted in the car being unusable.
Best regards,
Tom

 

Many thanks Graham

 

Welcome to the forum

 

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