1985 xj6 vdp
#1
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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
Thanks,
Tom
#2
Join Date: Mar 2008
Location: Pacific Northwest USA
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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
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
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#4
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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.
Please remember to add vehicle details to your Signature to help others to give relevant advice. Go to the User CP button on the left of the top menu bar, then Settings & Options under Your Control Panel. Select Edit Signature and enter the details.
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
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.
Please remember to add vehicle details to your Signature to help others to give relevant advice. Go to the User CP button on the left of the top menu bar, then Settings & Options under Your Control Panel. Select Edit Signature and enter the details.
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
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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
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
#7
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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
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
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#8
#9
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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.
Please remember to add vehicle details to your Signature to help others to give relevant advice. Go to the User CP button on the left of the top menu bar, then Settings & Options under Your Control Panel. Select Edit Signature and enter the details.
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
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.
Please remember to add vehicle details to your Signature to help others to give relevant advice. Go to the User CP button on the left of the top menu bar, then Settings & Options under Your Control Panel. Select Edit Signature and enter the details.
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
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#11
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Hi and welcome aboard, its good to have you here with us here at Jaguarforums
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Any useful site information you may need such as how to post pictures, edit signatures, add videos, using the
search facility etc, can be found here within the following link Using JF "How To"
There are lots of members local to you with the same interests with info on local dealers and possible meets.
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Need a Manual, a TSB, or General Info' about your Jag? Check out our >> DOWNLOAD AREA <<
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