I broke the plastic line off the round disk thing on the drivers side of the gas tank while changing fuel pumps, it appears to be a evap line of some sort. Is this a part that can be replaced? I was thinking maybe screw a barb fitting into the hole. Any input will be appreciated.

 

Hard to say without knowing your year and model. I certainly wouldn't be trying to bodge anything to do with a fuel system. Try the sites below and see if they give you the part you need.
https://oemdiscountcarparts.com/parts/?siteid=218637
https://www.jaguarlandroverrenoparts.com/

 

Sorry. It's a 99 xjr

 

That will be why I struggled to line your photo up with the parts diagram; you're in the wrong forum...

Try this one https://www.jaguarforums.com/forum/xj-xj8-xjr-x308-27/

 

Fixed it...probably better than new....

 

Hi pristinepowdercoating,

Welcome to the Jaguar Forums! It's great to have you with us.

I have moved your thread from the forum for the X350 to the forum for the X308, which is the Jaguar factory project code for your 1999 XJR. Here you will find knowledgeable owners of similar cars.

That part is called the Running Loss Valve, and it is an important part of the EVAP system that controls the release of fuel vapors from the tank. The Jaguar part number is NNA6126AD.

Your repair looks good, and if it is air-tight you should be all right. But leaks in the EVAP system larger than 40 thousandths of an inch (20 thousandths in 2004 and later cars) can trigger diagnostic trouble codes, so if you have any issues you might try sealing your repair with a good sealant that is fuel-resistant and oxygen sensor-safe.

BTW, you can use your User Control Panel to add your car year, model and engine details to your signature line so others won't have to ask for this info in order to provide accurate replies.

Cheers,

Don

 

Thank you!

 

I like your repair, hopefully that will seal well and give you many more years of service.