on February 26, 2009, 10:45 pm, in reply to "jaguar x type light load misfire after routine plug change "
probably not much help but I had exacltly the same problem. New ngk plugs from local factor at service then customer mentioned slight misfire under load. I got some more plugs from jaguar which were also ngk but a different part number. When I contacted the customer to book in and fit them he said the problem had "settled down".
I still have the replacement plugs!
Gordon.
Message Thread 
Jaguar X Type 2.5 V6 2002 - Light load misfire after routine plug change # - Chris Hogan February 26, 2009, 5:43 pm
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