Jaguar XJ 1997–1998 — technical service bulletin
Bulletin 30329 · NHTSA communication 615838 · issued Sep 1, 1998
Technical service bulletin
communication type
Electrical System
component
1997–1998
model years
2
vehicle entries
Official summary
Specification of spark plug gaps on v8 engines has been revised to improve engine idling quality. *tt
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.