Greetings jcrx another XJ owner good for you What Year?
if the switch is buggered there are a few XJ's being wrecked around online search eBay and Gumtree
You say the window goes down and not back up? if you are sure its the switch search the wreckers for one if the motor is making a noise and the window is not coming up you have a broken Window Regulator Thing
http://www.steigerperformance.com/
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