I’m a new member here from London, having just purchased a 1992 4.0 XJ40 Sovereign. The car has been generally well looked after and is in decent condition and runs well, but with a few electrical issues that I am starting to look into.
I have an issue with the passenger side front window. It has lowered from the driver’s side switch but will not raise using that switch. On the passenger door itself, the window will neither raise nor lower. So currently the window is lowered and won’t raise.
I have looked at a number of posts on different sites as I know window problems are not uncommon on XJ40s. So far I have replaced the switch packs on both the front doors and the problem remains the same, leading me to assume the switches themselves were fine.
I have also removed the Fuse box in the passenger foot well (Fuse 2) and re-soldered the joints, as I understand this is also a potential weak point. Again, nothing has changed.
If anyone has experienced the same issue or has any suggestions, I would be very grateful for any help you could provide.