Hi All,I have a 1968 Jaguar 420 and my break stopped working.It was on a long drive, banging up the toll motor way at 80mph and i used the breaks and nothing worked, but on the second or third depression they were fine, and for the rest of the trip no problem.I parked her up on the drive way for a week or so before I could look at her, by this point the breaks had totally stopped working, when I looked at the two break tanks seemed low so I topped them up no difference.The tanks have stayed full no change at all, I've pumped the breaks endlessly, no affect, I can not see any obvious leaks (and the tanks are still full).Now I'm just starting out and learning so this maybe well be past what I can do,but any pointers and ideas will be greatfuly receivedThank you

 

Welcome to Jaguar Forums Alastair,

Good to have you with us.
I've copied your post to the tech section follow this link to find it https://www.jaguarforums.com/forum/m...issues-281836/
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Hello,
Wow! What a misadventure! I'm so glad nothing really bad happened when your brakes failed. I hope you can get your car back on the road soon.

Welcome to the forums from ElinorB.
(';')

 

Welcome aboard Alastair.

 

Welcome to the Forums.

I reckon the booster has died, my S Type did that twice, scary as.

Repost this in the Tech Section: MK V - MK X 420G.

They ill know.

 

welcome to the forum - enjoy!!!