5.3 V12 running rough This topic is empty. Viewing 0 reply threads Author Posts 26th August 2017 at 16:56 #7494 Laurence Jones @laurence_admin Hi all Has the Jaguar XJS v12 5.3 got a limp home mode ??? We’ve just driven 250 miles in one go on motorway, all nice and smooth. Then as we pulled off we were hit with intense smell of petrol 🙁 As we pulled to a stop in a lay you the engine died. Discovered with the aid of a passing Frenchman that the fuel pipe in the boot was splint and was pumping petrol into the spare wheel sump, and then draining the hole. We cut the split piece of pipe off and the engine restarted. However, it is running rough – no real power and feels like it’s gently missing as we drive along. Any help appreciated, as we’re currently 800 miles from home Laurence Laurence Author Posts Viewing 0 reply threads You must be logged in to reply to this topic.