The upper bushings on the front shock absorbers are prone to failure and may produce a rattling/jingling noise as the car is driven over bumps.
Car Problem Reports
Jaguar XJS Rattling Noise Due to Failed Upper Front Shock Bushings
Jaguar XJS Problem
Average Mileage: 54,836 mi (12,000 mi - 93,347 mi)
Visitor, 1994 Jaguar XJS, 93,347 mi
it rattles on front left. hav'ntn fixed it yet
Visitor, 1995 Jaguar XJS, 73,000 mi
clicking noise when I go over bumps
A clacking sort of sound that sounds as if it may be coming from the left and rt under dash or front suspension. Turns out to be upper shock bushings. Took awhile to figure out. Fixed for 20.00. Jag bushings suck! I'd like to use hard rubber. The CBC 5616 bushing kit doesn't fit into cup nicely. Back to Jag tomoerrow.
Visitor, 1990 Jaguar XJS, 12,000 mi
Clunks like the front axle wants to come through the firewall/footwell area, passenger side